COM-360: Waterproof Professional Series pH/EC/TDS/Temp Meter HM Digital COM-360 model is a waterproof professional grade level pH/EC/TDS/Tem
HM Digital COM-360 model is a waterproof professional grade level pH/EC/TDS/Temp meter ideal for all water quality testings, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, boilers & cooling towers, water treatment and more.












