ORP meter - Kedida Model: CT-8022
 
Range: 1200mV
Temperature:0~50 C
Accuracy: 2mV/0.5C
Auto 2 points calibration 
mV & temperature double display
Data hold
Low voltage indication 
replaceable ORP sensor inside sensor ?
Auto power off for 10mins
Supply power: 6V (1.5V*4pcs)
Size: 188 x 38mm
Weight: 0.1kg
Includes storage container.