How to Calibrate COM 360 Meter by HM Digital India

HM Series
HM Digital India
HydroMeter 500
Hydrometer
PH Calibration
PH Conductivity Meter
ph meter ec meter
Conductivity Meter
SAL1700
TDS 3 Meter
Refractometers
Leak Block Sensor
ph and tds meter
Salinity Meter
HydroMeter 200
Combo pH EC TDS Temp Monitor
BTR 1000 Salinity
HydroMeter 100
BTR 1000 Coffee
PH/EC/TDS/Temp Monitor
COM Series

[@bhoot1702]

Is Kavita Corporation a distributor for HM Digital in India? I don't see a way to authenticate products on HM Digital official websites I might be sounding paranoid but there's too many knocoffs in the market