Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. The back-lit display simultaneously  displays dissolved oxygen (in % or mg/L) and temperature readings (in °C or °F). Automatic temperature compensation as well as manual compensation for salinity and altitude. Features simple one-button calibration to air.  DO probe heads include built in membranes and screw on and off for easy replacement. Also functions as a pH, ORP,  Conductivity, TDS or Salinity meter when used with the optional probes. Comes in a hard carrying case complete with DO probe, 2 spare probe heads, electrolyte, instructions and a 9V battery.  EPA Equivalency Method: 360.1.
- Meter Dimensions: 7" × 2¾" × 1¼" (177 × 68 × 45 mm)
 - Meter Weight: 16 oz (489 g)
 - Kit Dimensions: 11" × 9½" × 2" (279 × 241 × 51 mm) 
 
Unit of Measure:
  | Range:
  | Resolution:
  | Accuracy:
  | 
DO:
  | 0 to 20 mg/L
  | 0.1
  | ±0.4
  | 
O2 in Air:
  | 0 to 100.0%
  | 0.1
  | ±0.7
  | 
Temperature:
  | 0 to 50°C 32 to 122°F
  | 0.1
  | ±0.8°C ±1.5°F
  |