pH/EC/TDS/Temperature meter

Bench Top pH Meter -Model PH-210

Bench Top pH Meter-PHS-3BW

Portable pH:ORP Meter-(Model PH-220)

HM Digital pH 200 Mete The HM Digital PH-200 PH Meter is a professional grade pH/Temp meter ideal for all pH testing water. With its advanced microprocessor it provides highly accurate dependable readings in such applications as hydroponics, purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, and agriculture.