Combo meter Conductivity and TDS Meter Model Com-100 HM Brand

Conductivity and TDS Meter Model Com-100 HM Brand Reviews. 

Able to Calibrate with standard solution Both Standard 

conductivity and Standard TDS solutions. Just dip the tip probe 

into standard solutions.

Then Press Cal button(middle button)

Then adjust with up and down button(middle and third button) untill the display match with your standard solution afterward press on/off button again(1 time) to confirm the correctness.

Combo meter Com-100 use only 2 each AAA battery as a power source.

Recommend TDS Calibration Solutions.

HI70442L Brand Hanna

1500 mg/L(ppm) at 25 degree celcius or 77 degree farenhite

HI7032L  TDS Calibration Solution

Range 1382 mg/L(ppm) 500 ml.

Combo meter Model Com-100 available at amazon.com