4-in-1 H2/ORP/pH/TEMP Digital Meter,Backlit LCD

H2: 0-2400ppb ,0.001-2.4ppm
ORP:-1200~+1200mV
PH:0.00-14.00ph
TEMP:0°C-60°C / 32°-140.0°F
Accuracy: H2: ±10ppb (±0.01ppm), ORP: ±2mV,
PH: ±0.05ph, TEMP: ±0.1°C
Resolution: H2:1ppb (0.001ppm), ORP:5mV,
PH:0.01ph, TEMP:1°C
Power Supply: 3*1.5V
N.W/SIZE:164g/240*80*50mm
Color:Black&White