• HM Digital DM-1 In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy,Blue & White KWD 10
• HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy KWD 6
• HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy KWD 11
• -14% HM Digital SM-1 In-Line Single TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy KWD 9 KWD 11
• Commercial In-Line Dual TDS Monitor KWD 16.500
• HM Digital COM-100 HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter, 2.1&quot x 2.9&quot x 8.9&quot, White/Purple KWD 20.500
• HM Digital Triple Inline RO/DI TDS Monitor with 1/4 inch T-Fittings KWD 14
• -44% HM Digital HMPH80 HMDPHM80 Digital pH/Temperature Meter, 0-14 pH Range, 1 pH Resolution, 2% Readout Accuracy, Purple KWD 14.500 KWD 26
• HM Digital PH-STOR pH Electrode Storage Solution for Use with PH-200 or PH-80, 60cc Volume KWD 5
• HM Digital PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy KWD 24.500
• HM Digital SM-1 1-Stage Inline TDS Monitor For Single Water Line KWD 10.500
• HM Digital ZT-2 Basic TDS Tester, 0-999 ppm Measurement Range , 1 ppm Resolution, +/- 3% Readout Accuracy, Black KWD 5
• HM Digital DM-2EC Commercial In-Line Dual EC Monitor, 0-9990 µS Range, +/- 2% Readout Accuracy KWD 16.500
• HM Digital Com-300 Ph/Tds/EC/Temp Meter KWD 40.500
• HM Digital 716160 COM-100 Waterproof Professional Series Combo Meter, 7", White/Purple KWD 25
• HM Digital PSC-154 TDS/EC Controller with 4-20mA Output, 0-9999 µS Measurement Range, 0.1 µS/ppm Resolution, +/-2% Readout Accuracy KWD 62
• HM Digital unisex adult Pocket science lab ph meters, Brown, Without Digital Thermometer US KWD 12
• -24% HM Digital SP-P2 Replacement PH Sensor for PH-200 KWD 14 KWD 19
• HM Digital Meters HMDTDS3 3 Handheld TDS Meter KWD 6.500
• HM Digital EC-3 Handheld Electrical Conductivity (EC) Tester Meter with Case, 0 - 9990 µS Measurement Range, 1µS Resolution, +/- 2% Readout Accuracy KWD 10.500
• -10% HM Digital PSC-150 Extended Range EC/TDS Controller, 0-9999 µS Measurement Range, 0.1 µS/ppm Resolution, +/-2% Readout Accuracy KWD 53.500 KWD 60
• HM Digital HM-100, Continuous PH/EC/TDS/Temp Monitor KWD 65.500
• HM Digital QC-1 Quick Check TDS/Conductivity Push-to-Test Monitor with Set Points, +/- 3% Accuracy KWD 7.500
• HM Digital 716137 Hydromaster Portable KWD 66