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Ohaus Starter 400M pH & Conductivity Portable Meter

Ohaus Starter 400M pH & Conductivity Portable Meter

by OHAUS
$1,579.20
Model

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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
Premium Product
Australia Wide Delivery

OHAUS Starter 400M pH & Conductivity Portable Meter

Rugged Multi-Parameter Water Analysis for Demanding Field Environments

The OHAUS Starter 400M Multi-Parameter Portable Water Analysis Meter delivers comprehensive testing capabilities for pH, conductivity, TDS, salinity, and resistivity in a robust, waterproof design specifically engineered for field applications. Built with IP67 waterproof housing, protective rubber cover, and IP67-rated probes, this lightweight (0.35 kg / 0.77 lb) battery-operated unit withstands prolonged use in wet and challenging environmental conditions. The meter provides extensive measurement ranges across all parameters: pH from -2.00 to 16.00 with ±0.01 pH accuracy, conductivity from 0.01 μS/cm to 199.9 mS/cm with ±0.5% accuracy, TDS from 0.1 mg/L to 199.9 g/L, salinity from 0 to 99.9 psu, resistivity from 0 to 20 MΩ·cm, and mV from -1999 to 1999 mV. Temperature measurement spans -5°C to 110°C with automatic compensation via 30 KΩ NTC sensor ensuring accurate readings across varying environmental conditions. The rechargeable lithium battery provides 40 hours of uninterrupted operation with more than 300 charge cycles, eliminating frequent battery replacements during extended field deployments and reducing long-term operating costs.

Intuitive Operation with Advanced Data Management

The ST400M features intuitive software that guides users through operation while clearly displaying critical information including electrode condition on the large, backlit LCD for excellent visibility in diverse lighting conditions. Data storage capacity of up to 1000 items enables comprehensive field documentation, while the built-in micro-USB port facilitates easy data transfer to computers for analysis and reporting. The automatic temperature compensation and high-resolution measurements (0.01 pH, 0.1 μS/cm conductivity, 0.01 Ω·cm resistivity, 0.1°C temperature) ensure accurate, reproducible results essential for water quality monitoring and regulatory compliance. Operating reliably in working environments from 5-40°C with up to 80% relative humidity (non-condensing), the compact dimensions (230×40×100 mm) make the ST400M highly portable for field applications. Available in two model configurations—ST400M-B and ST400M-G (which includes ST320 IP67 pH electrode and STCON3 IP67 conductivity electrode with 3-meter cables)—the Starter 400M delivers professional-grade multi-parameter water analysis capabilities in an affordable, user-friendly portable package ideal for environmental monitoring, aquaculture, agriculture, wastewater treatment, and field research applications.

Key Features:

  • One Year Warranty for piece of mind.
  • Multi-Parameter Capability: Measures pH, conductivity, TDS, salinity, resistivity, mV, and temperature in single device.
  • IP67 Waterproof Design: Complete protection with waterproof housing, rubber cover, and IP67-rated probes.
  • Extended Battery Life: Rechargeable lithium battery provides 40 hours operation with 300+ charge cycles.
  • High Measurement Accuracy: ±0.01 pH, ±0.5% conductivity, ±0.3°C temperature for reliable results.
  • Large Data Storage: Records up to 1000 measurement items for comprehensive field documentation.
  • Intuitive LCD Display: Large backlit screen shows all parameters and electrode condition clearly.
  • Automatic Temperature Compensation: 30 KΩ NTC sensor ensures accurate readings across temperature ranges.
  • USB Connectivity: Built-in micro-USB port enables easy data transfer to computers
  • Lightweight and Portable: Compact 0.35 kg design with 230×40×100 mm dimensions for field mobility.
  • Wide Measurement Ranges: pH -2 to 16, conductivity 0.01 μS/cm to 199.9 mS/cm, temperature -5°C to 110°C.

Applications:

The Starter 400M is ideal for:

  • Environmental water quality monitoring.
  • Aquaculture and fisheries management.
  • Agricultural irrigation water testing.
  • Wastewater treatment monitoring.
  • Field research and educational applications.
  • Regulatory compliance testing.

 

Need Help? Call 1300 812 450

Specifications

Specifications for the Ohaus Starter 400M pH & Conductivity Portable Meter

Need Help? Call 1300 812 450

Downloads

Ohaus Starter 400M pH & Conductivity Portable Meter Manual PDF

 

Owner's Manual:

Ohaus Starter 400M pH & Conductivity Portable Meter Manual PDF

 

Product Datasheet:

Ohaus Starter 400M pH & Conductivity Portable Meter Datasheet PDF

Description

OHAUS Starter 400M pH & Conductivity Portable Meter

Rugged Multi-Parameter Water Analysis for Demanding Field Environments

The OHAUS Starter 400M Multi-Parameter Portable Water Analysis Meter delivers comprehensive testing capabilities for pH, conductivity, TDS, salinity, and resistivity in a robust, waterproof design specifically engineered for field applications. Built with IP67 waterproof housing, protective rubber cover, and IP67-rated probes, this lightweight (0.35 kg / 0.77 lb) battery-operated unit withstands prolonged use in wet and challenging environmental conditions. The meter provides extensive measurement ranges across all parameters: pH from -2.00 to 16.00 with ±0.01 pH accuracy, conductivity from 0.01 μS/cm to 199.9 mS/cm with ±0.5% accuracy, TDS from 0.1 mg/L to 199.9 g/L, salinity from 0 to 99.9 psu, resistivity from 0 to 20 MΩ·cm, and mV from -1999 to 1999 mV. Temperature measurement spans -5°C to 110°C with automatic compensation via 30 KΩ NTC sensor ensuring accurate readings across varying environmental conditions. The rechargeable lithium battery provides 40 hours of uninterrupted operation with more than 300 charge cycles, eliminating frequent battery replacements during extended field deployments and reducing long-term operating costs.

Intuitive Operation with Advanced Data Management

The ST400M features intuitive software that guides users through operation while clearly displaying critical information including electrode condition on the large, backlit LCD for excellent visibility in diverse lighting conditions. Data storage capacity of up to 1000 items enables comprehensive field documentation, while the built-in micro-USB port facilitates easy data transfer to computers for analysis and reporting. The automatic temperature compensation and high-resolution measurements (0.01 pH, 0.1 μS/cm conductivity, 0.01 Ω·cm resistivity, 0.1°C temperature) ensure accurate, reproducible results essential for water quality monitoring and regulatory compliance. Operating reliably in working environments from 5-40°C with up to 80% relative humidity (non-condensing), the compact dimensions (230×40×100 mm) make the ST400M highly portable for field applications. Available in two model configurations—ST400M-B and ST400M-G (which includes ST320 IP67 pH electrode and STCON3 IP67 conductivity electrode with 3-meter cables)—the Starter 400M delivers professional-grade multi-parameter water analysis capabilities in an affordable, user-friendly portable package ideal for environmental monitoring, aquaculture, agriculture, wastewater treatment, and field research applications.

Key Features:

  • One Year Warranty for piece of mind.
  • Multi-Parameter Capability: Measures pH, conductivity, TDS, salinity, resistivity, mV, and temperature in single device.
  • IP67 Waterproof Design: Complete protection with waterproof housing, rubber cover, and IP67-rated probes.
  • Extended Battery Life: Rechargeable lithium battery provides 40 hours operation with 300+ charge cycles.
  • High Measurement Accuracy: ±0.01 pH, ±0.5% conductivity, ±0.3°C temperature for reliable results.
  • Large Data Storage: Records up to 1000 measurement items for comprehensive field documentation.
  • Intuitive LCD Display: Large backlit screen shows all parameters and electrode condition clearly.
  • Automatic Temperature Compensation: 30 KΩ NTC sensor ensures accurate readings across temperature ranges.
  • USB Connectivity: Built-in micro-USB port enables easy data transfer to computers
  • Lightweight and Portable: Compact 0.35 kg design with 230×40×100 mm dimensions for field mobility.
  • Wide Measurement Ranges: pH -2 to 16, conductivity 0.01 μS/cm to 199.9 mS/cm, temperature -5°C to 110°C.

Applications:

The Starter 400M is ideal for:

  • Environmental water quality monitoring.
  • Aquaculture and fisheries management.
  • Agricultural irrigation water testing.
  • Wastewater treatment monitoring.
  • Field research and educational applications.
  • Regulatory compliance testing.

 

Need Help? Call 1300 812 450

Specifications

Specifications for the Ohaus Starter 400M pH & Conductivity Portable Meter

Need Help? Call 1300 812 450

Downloads

Ohaus Starter 400M pH & Conductivity Portable Meter Manual PDF

 

Owner's Manual:

Ohaus Starter 400M pH & Conductivity Portable Meter Manual PDF

 

Product Datasheet:

Ohaus Starter 400M pH & Conductivity Portable Meter Datasheet 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.