Specification : Display LCD size,20x27mm Measurement range PH: 0 to 14.00PH Resolution PH: 0.01 PH Accuracy PH: +-.02PH (after calibration) PH calibration PH4.01 , PH7.00 and PH10.01 , 3 points calibration Temperature display 0.1 centigrade

Feature:
1) 0 to 14.00PH 
2) Pen type digital PH meter,all in one,PH electrode included,easy to use 
3) Waterproof 
4) Supplied with a set of PH 4.01,PH 7.00,PH 10.01 buffers 
5) Easy to change the PH electrode 
6) Temperature measurement, centigrade or Fahrenheit
7) Build in temperature sensor, ATC(auto temperature compensation) 
8) LCD indicates both PH & Temp. 
9) Data hold function for freezing the desired value 
10) Auto power off without operation in 10 mins 
11) Micrcomputer circuit,intelligent functiion,high accuracy 
12) Compact size,light weight 
13) Power: 4xLR44/1.5V batteries(included) 
14) Available for wide applications,such as aquarium,beverage,fish hatcheries,food processing,photography,laboratory,quality control,school & colleges,swimming pools,water conditions