HANNA HI97752 钙-镁便携式防水光度计

The scale:

Calcium: 0 to 400 mg/L (ppm) Ca2+

Magnesium: 0 to 150 mg/L (ppm) Mg2+

Resolution: 1 mg/L (ppm)

Accuracy:

Calcium: ±10 mg/L ±5% of measured value

Magnesium: ±5 mg/L ±3% of measured value

Light source: Tungsten lamp

Light source: silicon photovoltaic cell @ 466 nm 

Auto-Off: after 15 minutes.

Ambient: 0 to 50°C (32 to 122°F); RH max 100% non-condensing

Battery: 3x 1.5V

Dimensions: 142.5 x 102.5 x 50.5 mm

Weight: 380g

Warranty 12 months