

YSI
YSI 626900 ProDSS Optical Dissolved Oxygen Sensor, 0 to 500% / 0 to 50 mg/L
Card or bank transfer · proforma invoice on request
Key specs from the product description
- Measurement range
- 0 to 500% saturation; 0 to 50 mg/L
- Accuracy (% sat)
- 0-200%: ±1% of reading or 1% saturation; 200-500%: ±8% of reading
- Accuracy (mg/L)
- 0-20 mg/L: ±0.1 mg/L or 1% of reading; 20-50 mg/L: ±8% of reading
- Resolution
- 0.01 mg/L and 0.1%, or 0.1 mg/L and 1% (user selectable)
- Method
- Optical luminescence, lifetime
- Calibration
- 1 or 2 point
Get a firm price
Ordered from the manufacturer for you. Send this form; we typically reply within one working day.
- 1Send the requestTakes a minute
- 2Get your priceTypically one working day
- 3Pay, we shipCard or bank transfer
- 30-day money-back if the item arrives defective, damaged or wrong. Policy
- Traceable calibration documentation ships with instruments
- Pay by card or bank transfer, invoice on request
- We ship worldwide. Destination confirmed with your quote
Datasheets & manuals
Manufacturer pages
YSI 626900 ProDSS Optical Dissolved Oxygen Sensor, 0 to 500% / 0 to 50 mg/L
Overview
The 626900 ODO sensor is a user-replaceable digital smart sensor for the YSI ProDSS multiparameter handheld and cable assemblies. Because each sensor stores calibration data in its own memory, sensors can be swapped between ports or instruments without recalibrating, and the universal connector system accepts any ProDSS sensor in any housing port.
Dissolved oxygen is measured optically: a blue light excites a luminescent dye and the decay time measured by a photodiode is inversely proportional to the oxygen partial pressure at the sensing surface. The sensor offers 1- or 2-point calibration, operates to 100 m depth, is rated for -5 to 50 °C DO measurement, and carries a two-year sensor warranty with a one-year sensor cap.
Features
- Range 0 to 500% saturation, 0 to 50 mg/L
- Optical luminescence lifetime method - no membranes or electrolyte
- Accuracy ±1% of reading or 1% saturation (0 to 200%)
- Titanium construction, rated to 100 m depth
- Digital smart sensor stores calibration data
- Universal connector works in any ProDSS port
- 1- or 2-point calibration
- For ProDSS handheld and cable assemblies
Applications
- Surface water and groundwater monitoring
- Wastewater and environmental sampling
- Aquaculture and field water quality surveys
YSI 626900 ProDSS Optical Dissolved Oxygen Sensor, 0 to 500% / 0 to 50 mg/L Technical Specifications
| Measurement range | 0 to 500% saturation; 0 to 50 mg/L |
|---|---|
| Accuracy (% sat) | 0-200%: ±1% of reading or 1% saturation; 200-500%: ±8% of reading |
| Accuracy (mg/L) | 0-20 mg/L: ±0.1 mg/L or 1% of reading; 20-50 mg/L: ±8% of reading |
| Resolution | 0.01 mg/L and 0.1%, or 0.1 mg/L and 1% (user selectable) |
| Method | Optical luminescence, lifetime |
| Calibration | 1 or 2 point |
| Maximum depth | 100 m |
| DO temperature compensation | -5 to 50 °C |
| Construction | Titanium |
| Compatibility | ProDSS handheld and cable assemblies |
| Warranty | 2 years sensor; 1 year sensor cap |
Manufacturer information: 626900 on ysi.com.
Price $610.00 USD as listed on 05 Nov 2026. Request a firm quote: https://na.indomultimeter.net/products/ysi-626900-prodss-optical-dissolved-oxygen-sensor-0-to-500-0-to-50-mg-l
Shipping. We ship worldwide. See the shipping policy.
Documents. Instruments ship with calibration documentation traceable to national standards. Some models, such as the Mensor CPG2500, also ship with an A2LA accredited ISO/IEC 17025 certificate.
Warranty. See the warranty policy.
Before you order
Is the price final?
The price shown is our current price in USD. Your quote confirms price and availability for your quantity.
How is my item supplied?
Items are ordered from the manufacturer for you. The quote confirms availability. Typical response is within one working day.
Do you provide calibration certificates?
Instruments ship with calibration documentation traceable to national standards. Ask in your request if you need a specific certificate.
How can I pay?
By card or by bank transfer. We can send a proforma invoice for your purchasing department.
Do you ship to my country?
We ship worldwide. Put your destination country in your enquiry and we confirm delivery with your quote.
What if it arrives defective, damaged or wrong?
You get a 30-day money-back guarantee for items that arrive defective, damaged or wrong. See the refund policy.