Keterangan :

EXTECH Waterproof pH Pen PH50

Features:
pH range: 2 to 12pH
LCD displays pH eadings
Easy to calibrate single CAL key with automatic pH buffer recognition ( 4, 7, and 10pH)
Choice of 3 point calibration for better accuracy
Data hold freezes reading on display
Low battery indicator, Auto power off
Complete with built in electrode, sensor cap, inner pH electrode protection cap, and 4 LR44 button batteries

Specifications Model PH50 Model PH60
pH : 2.0 to 12.0pH 0.0 to 14.0pH
Temperature : — 32 to 122° F( 0 to 50° C
Resolution : 0.1pH, 0.1° 0.1pH, 0.1°
Accurancy : ± 0.3pH ± 0.2pH; ± 1° F/ ± 0. 5° C
Power : four LR44 button batteries
Dimension : 6× 1.5× 0.9" ( 152× 37× 24mm)
Weight : 2.3oz( 65g)