0822 5870 6420 (Anto)

0813 9929 1909 (Fikri)

Phone Office

+62-21 29563045

Water Quality Monitor (WQM)



Sea-Bird Coastal WQM

Water Quality Monitor for Maximum Deployment Times

Ideally suited for unattended monitoring the WQM X employs active flow control, passive flow prevention, light-blocking, active biocide injection and passive inhibitors to effectively and safely combat internal and external fouling. With fouling minimized, the superior inherent stability of the WQM sensors translates directly to superior long-term data quality.

  • Unattended
  • Conductivity, pressure, chlorophyll, temperature, dissolved oxygen, turbidity
  • Designed specifically for extended deployment in biologically rich waters
  • RS-232


  • Robust: excellent anti-fouling capability provided by EPA approved anti-foulant, internal, pumped flow path and external copper cladding and wiper
  • Accurate: high initial accuracy and low drift rate
  • Cost Effective: typical deployment duration of 3- 6 months equals fewer site visits and lower operational costs year after year
  • External port enables the easy integration of an additional sensor


Measured Parameters  
Range 0 … 9 S/m
Accuracy 0.003 mS/cm
Resolution 0.00005 S/m
Range 0 … 100 or 0 … 200 m
Accuracy 0.1% Full Scale
Resolution 0.002% Full Scale
Range 0 … 50 µg/I
Accuracy 0.2% FS µg/I
Precision 0.04% FS µg/I

0.02% FS/deg C

Wavelength EX/EM 470/695 nm
Range -5 … 35°C
Accuracy 0.002 °C
Resolution 0.001 °C
Range 120% of saturation (200% upon request)
Accuracy 2% of saturation
Resolution 0.035% of saturation (0.003 ml/l at 0 C, 35 PSU)
Range 0 … 25 NTU
Accuracy 0.1% FS NTU
Precision 0.04% FS NTU
Wavelength 700 nm
Connector MCBH-6-MP, MCBH-4-FS
Output RS-232
Input 9 … 16 VDC
Sample rate 1 Hz
Current draw 350 mA Peak
< 50 µA Sleep
Depth 200 m
Pressure housing Acetal copolymer, ABS, PVC, titanium, copper
Dimensions 65.4 cm long x 18.5 cm max OD
Weight in air 5.4 kg
Weight in water 1.8 kg
a. Oxygen range is relative to surface saturation.b. +/- 0.2 mg/l or 2% of reading, whichever is greater. c. Available measurement ranges: 0?30 ?g Chl/l, 0?10 NTU 0?50 ?g Chl/l, 0?25 NTU 0?50 ?g Chl/l, 0?100 NTU 0?75 ?g Chl/l, 0?200 NT

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