Apera DO850 Handheld DO Meter

$2,319.90

Advanced fluorescence based optical sensor:

  • No oxygen consumption, stable display in both static water and dynamic water
  • Simple to use, No need to warm-up or frequently calibrate
  • Maintenance free, No electrode membranes or electrolyte, service life of fluoresence cap >8000 hours
  • Oxygen cap head has lightproof coating and is not affected by light and chemicals
  • Equipped with electrode calibration sheath, for easy storage and calibration
Availability: In Stock
SKU
ST-DO850

Specifications:

Measuring Range0-200%; 0-20.0mg/L
Resolution1%, 0.1mg/L (ppm)
Accuracy±0.1 mg/L (0~8mg/L); ±0.2 mg/L (8~20mg/L)
Calibration PointZero oxygen & oxygen saturation
Temp. CompensationAutomatic
Air-pressure CompensationAutomatic
Salinity CompensationManual
Measuring Range0 ~ 50.0℃
Resolution0.1 ℃
Accuracy±0.5℃
Reading Stability DisplayYes
Auto lock onYes
DisplayBacklit LCD
IP RatingIP57
PowerAA Batteries x 3  
Battery life> 200 hours

Kit Contents

  • DO10 Meter
  • DO electrode (3m)
  • Calibration Sheath & Carry Case

The main reasons why an Optical DO sensor is a better choice for measuring dissolved oxygen

  • Stability, sensitivity, speed of response, accuracy in low DO conditions and minimal maintenance requirements.
  • Oxygen is not consumed as part of an electrochemical reaction and optical sensors do not require sample flow or stirring for accurate readings.
  • Results demonstrated excellent correlation between the optical sensor and the Winkler titration method.
  • Optical sensors respond faster than membrane-based sensors to changing temperature and DO
  • Readings are stable and drift is minimal over long-term deployments.
  • Durable sensing element offers a longer operational life than an oxygen-permeable membrane.
  • Maintenance and calibration requirements are drastically reduced, minimizing site visits and operational costs.
  • Material costs are reduced. Clark-cell sensors require frequent replacement of membranes and filling solution. The optical sensor Cap is replaced annually. 
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