OHAUS ST400D Handheld Dissolved Oxygen Meter
The OHAUS ST400D is a handheld dissolved oxygen meter that measures DO concentration up to 200% with a resolution of 0.01 mg/L and accuracy of ±0.2 mg/L. It includes the STDO21 electrode and offers temperature…
SKU 3G-OTH-380814
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The OHAUS ST400D is a handheld dissolved oxygen meter that measures DO concentration up to 200% with a resolution of 0.01 mg/L and accuracy of ±0.2 mg/L. It includes the STDO21 electrode and offers temperature accuracy of 0.3° C.
Frequently Asked Questions
What is the OHAUS ST400D dissolved oxygen meter used for?
The OHAUS ST400D handheld meter measures dissolved oxygen concentration in water, ideal for environmental monitoring, wastewater treatment, and aquaculture. It provides DO readings up to 200% with 0.01 mg/L resolution and ±0.2 mg/L accuracy, including the STDO21 electrode.
What are the specifications of the OHAUS ST400D dissolved oxygen meter?
The OHAUS ST400D measures DO concentration up to 200% max, with 0.01 mg/L resolution and ±0.2 mg/L accuracy. Temperature accuracy is 0.3° C. It includes the STDO21 electrode. The manufacturer part number is ST400D.
Where to buy the OHAUS ST400D dissolved oxygen meter worldwide?
3G Electric supplies the OHAUS ST400D dissolved oxygen meter worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to maintain the OHAUS ST400D dissolved oxygen meter?
To maintain the OHAUS ST400D, regularly clean the STDO21 electrode with distilled water and store it in a moist environment. Calibrate per the manual using zero-oxygen and saturated-air solutions. Replace the membrane and electrolyte as needed to ensure ±0.2 mg/L accuracy.
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3G Electric supplies OHAUS handheld dissolved oxygen meters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.