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Ohaus Aquasearcher AB41PH-F Benchtop pH Meter Kit

by OHAUS
$2,438.75

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✅ FREE SHIPPING: Australia wide — Yes, even remote areas.

Processing Time: 1 - 3 business days.

Delivery Time: Up to 7 business days for metro areas.
Up to 7 - 14 business days for all other areas.

✅ Return Policy: 30 Day Returns.

✅ Need help? Call us on 1300 812 450

Free Shipping
30 Day Returns
Reliable Warranty
Australia Wide Delivery

Ohaus Aquasearcher AB41PH Benchtop pH Meter

The Ohaus Aquasearcher AB41PH Benchtop pH Meter is an advanced, research-grade pH measurement instrument designed to deliver accurate, repeatable results with reliable performance and precise measurement capabilities for demanding laboratory applications. Engineered with the intelligent i-Steward system at its core, the AB41PH ensures repeatable and consistent measurement accuracy through real-time electrode condition monitoring, "Electrode Dirty/Broken" alerts, and calibration due reminders that provide optimal peace of mind and help maintain measurement integrity. With selectable resolution from 0.1 to 0.001 pH, this high-resolution bench meter performs up to 5-point pH calibration using automatic buffer recognition across five predefined buffer groups, storing the ten most recent calibrations for comprehensive calibration trail documentation. The AB41PH measures pH, oxidation-reduction potential (ORP), and temperature with three selectable endpoint modes—Auto-Stop (holds stable readings), Continuous (shows changing readings), and Timed (logs data at specific intervals)—enabling flexible measurement strategies for diverse analytical requirements and experimental protocols.

Equipped with a large 6.5-inch segment and dot matrix LCD display with backlight, the AB41PH offers exceptional visibility and information presentation across multiple languages, making parameter changes, setup execution, and calibration procedures as intuitive as using a smartphone. The capacitive touch keypad provides simple and precise control, while the compact integrated stirrer uniformly mixes solutions to achieve fast, repeatable results at no additional cost. Built to support GLP/GMP compliance, the AB41PH features a 1,000-item measurement memory, password management for user access control to specific functions, and activity logs with audit-trail report generation via SPDC software to assist with 21 CFR Part 11 regulatory compliance. Standard RS232 and USB interfaces (included) with GLP/GMP data output capabilities and real-time clock enable seamless connection to external devices such as printers and computers for data transfer, storage, and documentation. Constructed with durable ABS housing, standalone adjustable electrode holder, and operating on AC adapter (included), the AquaSearcher AB41PH meets IEC/EN 61010-1 product safety, IEC/EN 61326-1 Class B electromagnetic compatibility, FCC Part 15 Class A, and Canada ICES-003 Class A standards, making it the ideal solution for research laboratories, pharmaceutical development, analytical chemistry, and quality control environments requiring the highest standards of pH measurement accuracy and regulatory compliance.

Features of Ohaus AB41PH-F pH Meter:

  • Comprehensive 1 - Year Warranty and Regulatory Compliance - Meets IEC/EN 61010-1 product safety, IEC/EN 61326-1 Class B EMC, FCC Part 15 Class A, and Canada ICES-003 Class A standards with WEEE and RoHS compliance, backed by manufacturer warranty for quality assurance.
  • Intelligent i-Steward System - Real-time electrode condition monitoring with "Electrode Dirty/Broken" indicators and calibration due alarms ensures repeatable and consistent measurement accuracy with proactive maintenance alerts.
  • Selectable High Resolution - User-selectable resolution from 0.1 to 0.001 pH enables precision adjustment to match specific application requirements, from routine analysis to high-resolution research measurements.
  • Large 6.5" Touchscreen Display - Segment and dot matrix LCD with backlight and multi-language support provides exceptional visibility and intuitive smartphone-like operation via capacitive touch keypad.
  • Advanced 5-Point Calibration - Up to 5-point pH calibration with automatic buffer recognition across five predefined buffer groups, storing ten most recent calibrations for comprehensive calibration documentation and traceability.
  • Three Flexible Endpoint Modes - Auto-Stop (holds stable readings), Continuous (displays changing readings), and Timed (logs data at specific intervals) provide measurement flexibility for diverse analytical protocols.
  • GLP/GMP Compliance Features - 1,000-item measurement memory, password management for user access control, activity logs with audit-trail reporting via SPDC software to assist with 21 CFR Part 11 regulatory compliance.
  • Integrated Compact Stirrer - Built-in stirrer uniformly mixes solutions to achieve fast equilibration and repeatable results without requiring separate stirring equipment, streamlining workflow and reducing bench space requirements.
  • Dual Communication Interfaces - Standard RS232 and USB connections (included) with GLP/GMP data output and real-time clock enable seamless connectivity to printers, computers, and laboratory information management systems.
  • Measurement Stability Indicator - Visual stability indicators capture critical readings at optimal measurement points, ensuring data quality and reducing operator uncertainty during pH determination.

Applications for Ohaus AB41PH-F pH Meter:

  • Pharmaceutical Research and Development: High-resolution pH measurement for drug formulation development, stability studies, and quality control with 21 CFR Part 11 compliance support through audit-trail reporting and password management.
  • Quality Control and Regulatory Testing: GLP/GMP-compliant pH measurement for regulated industries requiring password-protected user management, calibration trail documentation, and audit-ready data reporting.
  • ISO/IEC 17025 Accredited Laboratories: Research-grade pH measurement for accredited testing laboratories requiring i-Steward electrode monitoring, calibration documentation, password management, and complete measurement traceability for quality management systems.
  • Analytical Chemistry Laboratories: Precise pH and ORP measurement for complex analytical procedures, method development, and chemical analysis requiring 5-point calibration and comprehensive data documentation.
  • Biotechnology and Life Sciences: pH monitoring for cell culture media optimization, fermentation processes, biochemical assays, and biological sample preparation with timed endpoint measurement for kinetic studies.
  • Food and Beverage Quality Assurance: Precise pH measurement for product development, stability testing, and process monitoring with calibration due alarms ensuring measurement integrity and regulatory compliance.

Ohaus AB41PH-F Kit Includes:

AQUASEARCHER AB41PH Benchtop Meter, Stand-Alone Electrode Holder, ST410 pH Electrode, STEMP30, AS20 Compact Stirrer, pH buffer Mini Kits (4 × 50 ml).

 

Ohaus Logo & 1 Year Warranty

Need Help? Call 1300 812 450

Specifications

Specifications for the Ohaus Aquasearcher AB41PH Benchtop Meter

 

Ohaus Logo & 1 Year Warranty

Need Help? Call 1300 812 450

Downloads

Ohaus Starter AB41pH Benchtop Meter Manual

  Product Datasheet                                                                                                            Quick Start Guide                                                   

Ohaus Starter AB41 pH Benchtop Meter - Product Datasheet PDFOhaus Starter AB41pH Benchtop Meter - Product Datasheet PDF          Ohaus Aquasearcher  AB41PH Bench Meter - Quick Start Guide PDFOhaus Starter AB41pH Benchtop Meter - Quick Start Guide PDF

 

  Product Brochure

Ohaus Water Analysis and Electrodes - Brochure PDFOhaus Water Analysis and Electrodes - Brochure PDF

Description

Ohaus Aquasearcher AB41PH Benchtop pH Meter

The Ohaus Aquasearcher AB41PH Benchtop pH Meter is an advanced, research-grade pH measurement instrument designed to deliver accurate, repeatable results with reliable performance and precise measurement capabilities for demanding laboratory applications. Engineered with the intelligent i-Steward system at its core, the AB41PH ensures repeatable and consistent measurement accuracy through real-time electrode condition monitoring, "Electrode Dirty/Broken" alerts, and calibration due reminders that provide optimal peace of mind and help maintain measurement integrity. With selectable resolution from 0.1 to 0.001 pH, this high-resolution bench meter performs up to 5-point pH calibration using automatic buffer recognition across five predefined buffer groups, storing the ten most recent calibrations for comprehensive calibration trail documentation. The AB41PH measures pH, oxidation-reduction potential (ORP), and temperature with three selectable endpoint modes—Auto-Stop (holds stable readings), Continuous (shows changing readings), and Timed (logs data at specific intervals)—enabling flexible measurement strategies for diverse analytical requirements and experimental protocols.

Equipped with a large 6.5-inch segment and dot matrix LCD display with backlight, the AB41PH offers exceptional visibility and information presentation across multiple languages, making parameter changes, setup execution, and calibration procedures as intuitive as using a smartphone. The capacitive touch keypad provides simple and precise control, while the compact integrated stirrer uniformly mixes solutions to achieve fast, repeatable results at no additional cost. Built to support GLP/GMP compliance, the AB41PH features a 1,000-item measurement memory, password management for user access control to specific functions, and activity logs with audit-trail report generation via SPDC software to assist with 21 CFR Part 11 regulatory compliance. Standard RS232 and USB interfaces (included) with GLP/GMP data output capabilities and real-time clock enable seamless connection to external devices such as printers and computers for data transfer, storage, and documentation. Constructed with durable ABS housing, standalone adjustable electrode holder, and operating on AC adapter (included), the AquaSearcher AB41PH meets IEC/EN 61010-1 product safety, IEC/EN 61326-1 Class B electromagnetic compatibility, FCC Part 15 Class A, and Canada ICES-003 Class A standards, making it the ideal solution for research laboratories, pharmaceutical development, analytical chemistry, and quality control environments requiring the highest standards of pH measurement accuracy and regulatory compliance.

Features of Ohaus AB41PH-F pH Meter:

  • Comprehensive 1 - Year Warranty and Regulatory Compliance - Meets IEC/EN 61010-1 product safety, IEC/EN 61326-1 Class B EMC, FCC Part 15 Class A, and Canada ICES-003 Class A standards with WEEE and RoHS compliance, backed by manufacturer warranty for quality assurance.
  • Intelligent i-Steward System - Real-time electrode condition monitoring with "Electrode Dirty/Broken" indicators and calibration due alarms ensures repeatable and consistent measurement accuracy with proactive maintenance alerts.
  • Selectable High Resolution - User-selectable resolution from 0.1 to 0.001 pH enables precision adjustment to match specific application requirements, from routine analysis to high-resolution research measurements.
  • Large 6.5" Touchscreen Display - Segment and dot matrix LCD with backlight and multi-language support provides exceptional visibility and intuitive smartphone-like operation via capacitive touch keypad.
  • Advanced 5-Point Calibration - Up to 5-point pH calibration with automatic buffer recognition across five predefined buffer groups, storing ten most recent calibrations for comprehensive calibration documentation and traceability.
  • Three Flexible Endpoint Modes - Auto-Stop (holds stable readings), Continuous (displays changing readings), and Timed (logs data at specific intervals) provide measurement flexibility for diverse analytical protocols.
  • GLP/GMP Compliance Features - 1,000-item measurement memory, password management for user access control, activity logs with audit-trail reporting via SPDC software to assist with 21 CFR Part 11 regulatory compliance.
  • Integrated Compact Stirrer - Built-in stirrer uniformly mixes solutions to achieve fast equilibration and repeatable results without requiring separate stirring equipment, streamlining workflow and reducing bench space requirements.
  • Dual Communication Interfaces - Standard RS232 and USB connections (included) with GLP/GMP data output and real-time clock enable seamless connectivity to printers, computers, and laboratory information management systems.
  • Measurement Stability Indicator - Visual stability indicators capture critical readings at optimal measurement points, ensuring data quality and reducing operator uncertainty during pH determination.

Applications for Ohaus AB41PH-F pH Meter:

  • Pharmaceutical Research and Development: High-resolution pH measurement for drug formulation development, stability studies, and quality control with 21 CFR Part 11 compliance support through audit-trail reporting and password management.
  • Quality Control and Regulatory Testing: GLP/GMP-compliant pH measurement for regulated industries requiring password-protected user management, calibration trail documentation, and audit-ready data reporting.
  • ISO/IEC 17025 Accredited Laboratories: Research-grade pH measurement for accredited testing laboratories requiring i-Steward electrode monitoring, calibration documentation, password management, and complete measurement traceability for quality management systems.
  • Analytical Chemistry Laboratories: Precise pH and ORP measurement for complex analytical procedures, method development, and chemical analysis requiring 5-point calibration and comprehensive data documentation.
  • Biotechnology and Life Sciences: pH monitoring for cell culture media optimization, fermentation processes, biochemical assays, and biological sample preparation with timed endpoint measurement for kinetic studies.
  • Food and Beverage Quality Assurance: Precise pH measurement for product development, stability testing, and process monitoring with calibration due alarms ensuring measurement integrity and regulatory compliance.

Ohaus AB41PH-F Kit Includes:

AQUASEARCHER AB41PH Benchtop Meter, Stand-Alone Electrode Holder, ST410 pH Electrode, STEMP30, AS20 Compact Stirrer, pH buffer Mini Kits (4 × 50 ml).

 

Ohaus Logo & 1 Year Warranty

Need Help? Call 1300 812 450

Specifications

Specifications for the Ohaus Aquasearcher AB41PH Benchtop Meter

 

Ohaus Logo & 1 Year Warranty

Need Help? Call 1300 812 450

Downloads

Ohaus Starter AB41pH Benchtop Meter Manual

  Product Datasheet                                                                                                            Quick Start Guide                                                   

Ohaus Starter AB41 pH Benchtop Meter - Product Datasheet PDFOhaus Starter AB41pH Benchtop Meter - Product Datasheet PDF          Ohaus Aquasearcher  AB41PH Bench Meter - Quick Start Guide PDFOhaus Starter AB41pH Benchtop Meter - Quick Start Guide PDF

 

  Product Brochure

Ohaus Water Analysis and Electrodes - Brochure PDFOhaus Water Analysis and Electrodes - Brochure PDF

Shipping

Free Shipping Australia Wide:
We offer free shipping for all OHAUS products Australia wide.

Shipping and Processing:
- We offer free shipping on all OHAUS products.
- Please allow 1-3 business days for order processing.
- If you choose any factory fitted options for your equipment, please allow an additional 1-2 business days for fitting.
- Please allow up to 7 business days for delivery to metro areas.
- For all other locations, please allow up to 14 business days for delivery.

Delivery: 

All OHAUS products purchased from Lab Devices Australia are delivered using standard shipping.

"We advise customers to keep their product packaging in case a return or warranty repair is needed. Original packaging is specifically designed to protect the product during shipping and helps minimize damage in transit."

Back Orders:

Some products may occasionally be out of stock. If your selected item is on back order, we'll contact you before processing your order with an estimated dispatch timeframe. At that point, you can choose whether to proceed or cancel the order. 

Cancellation Policy:

Orders can only be cancelled if the product has not yet left our warehouse. If the product is already in transit at the time of your cancellation request, our standard return policy applies. This requires the product to be returned un-opened, with return shipping costs covered by the customer.

Need Help? Call 1300 812 450

Returns

Unopened Returns:
There is a 30 day return on unopened products from date of purchase. The package must not be opened and must be in a resellable condition. So, this means the package that the product has come in must not be opened at all.

Return shipping costs must be covered and organised by the customer unless the product is damaged or faulty. Once product has been returned in a resellable condition, inspected and found to be in an undamaged & resellable condition, a refund will be processed.

No Return Policy:
- We do not accept returns on products once packaging has been opened, unless the product has been proven to be damaged or faulty.

- We do not accept returns on unopened products after 30 Days.

- If an item has had custom changes made to it, we will not accept a return on these items. If you are getting custom changes made to an item, please be aware of this policy.

Please contact support@labdevicesaustralia.com.au for any inquires.

Damaged Shipments: Ensuring a Smooth Resolution

We take great care in packaging your order, but if damage occurs during transit, we are here to help ensure a quick and smooth resolution.

If the packaging is clearly damaged upon delivery: We kindly ask you to refuse the package and immediately ask the driver to document the damage. Please call us right away at 1300 812 450 to report the refusal. Lab Devices Australia will then handle the claim with the carrier and arrange for a replacement shipment as soon as the inspection is complete.

If the damage is hidden (not visible on the outside): Please contact us at support@labdevicesaustralia.com.au or call 1300 812 450 within 5 days of receiving your shipment. To help us file a prompt claim, please be ready to provide clear photographs of both the damaged product and the internal and external packaging.

Important Note for All Damaged Shipments: For the carrier's inspection, it is essential that you keep the box, all packing materials, and the damaged items until the claim is fully resolved. Upon confirming transit damage, we will quickly arrange a return, refund, or replacement, with the shipping costs covered by the transit company. If the packaging is damaged but your product is perfectly fine, no further action will be needed from us.

Faulty Product:
If the product is faulty, please contact
support@labdevicesaustralia.com.au immediately so an arrangement can be made for a return/refund or return/replacement, under specified warranty conditions of the faulty product. The product must be repacked in its original packing.

Need Help? Call 1300 812 450

Warranty

OHUAS Warranty Information

Best-in-Class Warranty Protection

At Lab Devices Australia, all OHAUS scales, balances, and lab equipment come with comprehensive manufacturer warranty coverage. OHAUS is committed to quality, with many products backed by an industry-standard 1 to 5-year warranty, ensuring your investment is precise and protected.

"We advise customers to keep their product packaging in case a return or warranty repair is needed. Original packaging is specifically designed to protect the product during shipping and helps minimize damage in transit."

Warranty Coverage by Product Range

Six Month Warranty

  • Starter Series Electrodes

One Year Warranty

  • Accessories
  • Indicators (all models)
  • SD & Catapult Scales
  • Aviator® Scales
  • MB23 and MB32 Moisture Analyzers
  • Starter & Aquasearcher Meters
  • CR Scales
  • Navigator® Scales
  • Valor® Scales
  • Defender® Scales
  • Scout® STX, SPX & SJX Balances
  • Floor Scales
  • CKW Scales
  • Ranger® Scales
  • Frontier Mini Centrifuge
  • FD Scales
  • CX Scales
  • Scale Bases (all models)

Two Year Warranty

  • Labjaws Clamps & Supports
  • Frontier Micro & Multi Centrifuges
  • Open Air Shakers
  • Incubating & Incubating Cooling Shakers
  • Overhead Stirrers
  • Vortex Mixers
  • Guardian™ Hotplates & Stirrers
  • Dry Block Heaters
  • Homogenizers

Three Year Warranty

  • Explorer® High Capacity Balances
  • Adventurer® Balances
  • Pioneer® Balances
  • PR Series Balances
  • MB92, MB62 Moisture Analyzers
  • MB120 Moisture Analyzer

Five Year Warranty

  • Explorer® Semi-Micro Balances
  • Explorer® Analytical Balances
  • Explorer® Precision Balances

What's Covered

Adam Equipment warranties typically cover:

  • Defects in materials and workmanship
  • Manufacturing faults
  • Component failures under normal use conditions
  • Load cells and weighing mechanisms
  • Electronic components and displays

Warranty Exclusions

Warranty coverage does not include:

  • Damage from misuse, abuse, or negligence
  • Normal wear and tear
  • Consumable items (batteries, printer paper, labels, etc.)
  • Damage from unauthorized repairs or modifications
  • Environmental damage (water ingress, electrical surges, impact damage)
  • Calibration drift (regular calibration is considered routine maintenance)
  • Damage from improper installation or transport

Maintaining Your Warranty

To ensure your warranty remains valid:

  • Use equipment according to manufacturer specifications
  • Perform regular maintenance as outlined in product documentation
  • Operate equipment within specified environmental conditions (temperature, humidity)
  • Use only authorized service technicians for repairs
  • Retain proof of purchase and product documentation

Warranty Service Process

If you require warranty service for your OHAUS product:

Step 1: Contact Us
Email: support@labdevicesaustralia.com.au
Phone: 1300 812 450

Step 2: Provide Information

  • Product model and serial number
  • Date of purchase and invoice number
  • Detailed description of the issue or fault

Step 3: Assessment
We'll assess whether the issue is covered under warranty and arrange appropriate service through OHAUS's authorized service network.

Step 4: Resolution
Depending on the issue, resolution may include:

  • On-site repair by authorized technician
  • Return to service center for repair
  • Replacement parts shipment
  • Product replacement (in cases of major failure)

Australian Consumer Law

Your warranty rights are protected under Australian Consumer Law. Adam Equipment products come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have goods repaired or replaced if they fail to be of acceptable quality and the failure does not amount to a major failure.

The benefits provided by Adam Equipment warranties are in addition to your rights under Australian Consumer Law.

OHAUS Product Quality Assurance

OHAUS maintains the highest quality standards:

  • ISO 9001:2015 certified manufacturing
  • Over 100 years of precision weighing expertise
  • Global network of authorized service centers
  • Rigorous quality control and testing procedures
  • Compliance with international weighing standards

Beyond Warranty Service, Repair & Calibration

For products no longer under warranty, we’re happy to provide you with trusted service repair contact information to help ensure your equipment is reliably serviced and maintained. Beyond warranty coverage, Lab Devices Australia can assist with:

  • Periodic calibration services
  • Repairs and service outside warranty period
  • Technical support and troubleshooting

Questions About Your Warranty?

Our team is ready to help you understand your OHAUS warranty coverage and answer any questions about protecting your investment.

Contact Lab Devices Australia:
Phone: 1300 812 450
Email: support@labdevicesaustralia.com.au


Authorized dealer of OHAUS in Australia

Why Buy From Us

At Lab Devices Australia, we’re more than just an online store — we’re a trusted partner for laboratories, clinics, universities, and research facilities across the country. Our carefully curated range of premium lab equipment and accessories is designed to meet the strict standards of modern scientific and medical environments. Whether you're outfitting a new facility or replacing critical instruments, you can count on us for high-quality, dependable products from respected brands.

We proudly offer transparent pricing, secure online ordering, and fast, Australia-wide delivery — even to remote areas. We understand the demands of professional labs, which is why we back every product with expert support and a commitment to customer satisfaction. You’ll also benefit from convenient GST invoicing, optional quotes for procurement workflows, and reliable after-sales assistance.

Lab Devices Australia combines the convenience of e-commerce with the care of a specialised supplier. With a focus on quality, safety, and service, we make it easier to get the equipment you need — when and where you need it. Experience the difference of a supplier that understands the real needs of Australian labs.

  • Free Shipping (on select products) Australia wide. 
  • Price Match Guarantee. Best prices online guaranteed.
  • 30 Day Returns. If you realize the product is not right for you or you chose the wrong product, just return it to us in a resaleable condition.
  • Great Service. We pride ourselves on the best service, anywhere.
  • Your Satisfaction Guaranteed. We handpick our products for quality, we know you'll love them. But if there is ever something wrong, we'll fix it.