When not using water quality meter/electric conductivity meter, plug electrode closing plug in installation hole of water quality meter and electric conductivity meter of G-5D・10D・20C.
Water quality meter(RG-8A) will light green if water quality is good, and poor water quality will light red.
Specifications
RG-12 electric conductivity meter
Size (mm): 120 x 112 x 39
Water quality control alarm function: Buzzer sound and indicator lamp flashing for more than 1μs/cm (standard setting)
Electric conductivity display range: 0.0 - 99.9μs/cm
Power supply: AA battery x 2 pieces (battery of testing is included) or AC adapter (optional)