Electric Pocket Digital Ph Meter Tester Hydroponics Pen （Yellow）
Range:0.0 - 14.0pH
Resolution:0.1pH
Accuracy :± 0.1pH( at 20°C/ 68°F)
Typical EMC DEV :± 0.2pH
Batteries :3 x 1.5V ( AG-13 Button Battery)
Life :approx. 700hours of use
Function :Test the PH of water， wine and Urine .
Environment :0°C ~ 50°C( 32°F - 122°F)
Relative Humidity :<95°%
Dimensions :150mm x 29mm x 16mm
Trimming :by potentiomete

Package Included:
1x Digital PH meter1x Digital PH meter
1x Calibration Adjustment screwdriver 
1x User instruction (English) 
2x pH buffer powder