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HM Digital HydroMaster Continuous pH/EC/TDS/Temperature MonitorHM Digital HM-500 HydroMaster Continuous pH/EC/TDs/Temperature Monitor
Part Number: HM-500
HM Digital HydroMaster Continuous pH/EC/TDS/Temperature Monitor The HM Digital HydroMaster continuously monitors pH, EC, and TDS temperature levels. The HM-500 is very accurate and can be calibrated with various buffer solutions, but also...
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    HM Digital SP-C5 TDS/EC Replacement Probe for HydroMaster HM-500HM Digital SP-C5 TDS/EC Replacement Probe for HydroMaster HM-500
    Part Number: SP-C5
    HM Digital SP-C5 TDS/EC Replacement Probe for HydroMaster HM-500 The HM Digital SP-C5 is a replacement TDS/EC probe for the HM Digital HydroMaster HM-500 . It has an easy assembly, and must be calibrated once new sensor is attached. The HM...
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      $41.99 

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      HM Digital SP-P5 pH Replacement Probe for HydroMaster HM-500HM Digital SP-P5 pH Replacement Probe for HydroMaster HM-500
      Part Number: SP-P5
      HM Digital SP-P5 pH Replacement Probe for HydroMaster HM-500 The HM Digital SP-P5 is a replacement pH probe for the HM Digital HydroMaster HM-500 . It has an easy assembly, and must be calibrated once new sensor is attached. The HM Digital SP-P5...
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        $45.99 

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        pH / Temp Meter WaterproofpH / Temp Meter Waterproof
        Part Number: PH-200
        HM Digital PH-200 Handheld pH/Temp Meter Measures pH and temperature Auto-ranging three point calibration with digital fine tuning Includes 4 pH buffer solution in a sponge embedded in a clear cap, so you can see if it's dried up Waterproof...
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          MSRP: $99.95
          $78.56 

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          HM Digital PH-80 Handheld pH / Temp MeterHM Digital PH-80 Handheld pH / Temp Meter
          Part Number: PH-80
          HM Digital PH-80 Handheld pH / Temp Meter The HM Digital PH-80 Handheld pH / Temp Meter is an economically priced, reliable pH meter. The PH-80 HydroTester is ideal for testing applications such as hydroponics and gardening, pools and spas,...
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            MSRP: $62.95
            $50.45 

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            Hanna Instruments HI98121 pH, ORP, and Temperature Combo MeterHanna Instruments HI98121 pH, ORP, and Temperature Combo Meter
            Part Number: HI98121
            • High accuracy pH and ORP measurements
            • Large, easy-to-read, dual-level LCD screen 
              • Automatically shuts off
            • Automatic compensation for effects of temperature
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              $178.00 

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              Hanna Instruments HI98129 pH, TDS, EC, and Temp Combo MeterHanna Instruments PH, TDS, EC, and Temp Meter HI 98129
              Part Number: HI98129
              • High accuracy pH, EC/TDS and temperature measurements
              • Large, easy-to-read, dual-level LCD (automatically shuts off)
              • Automatic compensation for the effects of temperature
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                $175.71 

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                Extech EX900-R ExStik 4-in-1 Chlorine, pH, ORP and Temp Handheld Meter KitExtech CL200 ExStik Chlorine Handheld Meter
                Part Number: EX900-R
                • Direct reading of total chlorine in less than 2 minutes
                • Low detection limit down to 0.01 ppm
                • Unaffected by sample color or turbidity
                • Memory stores, tags, and recalls up to 15 readings
                • US EPA approved as an acceptable method of wastewater compliance monitoring of total chlorine
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                  HM Digital TDS-3 Handheld TDS Meter With ThermometerHM Digital TDS-3 Handheld TDS Meter With Thermometer
                  Part Number: TDS-3
                  HM Digital TDS-3 Handheld TDS Meter With Thermometer The HM Digital TDS-3 handheld water quality tester enables you to determine just how good or bad your water really is! These testers accurately measure the TDS level in your water. Ideal for...
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                    MSRP: $37.00
                    $22.20 

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                    Set of 10 for $19.31 ea
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                    HM Digital TDS-4 Pocket Size TDS MeterHM Digital TDS-4 Pocket Size TDS Meter
                    Part Number: TDS-4
                    HM Digital TDS-4 Handheld TDS/Temp Meter Highly efficient and accurate due to its advanced microprocessor technology Hold function -- saves measurements for convenient reading and recording Auto-off function -- automatically shuts off meter after...
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                      MSRP: $35.00
                      $20.08 

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                      Pocket Size TDS Meter w/ThermometerPocket Size TDS Meter w/Thermometer
                      Part Number: TDS-4TM
                      Alternate Part Number: EV6500-02,EV650020
                      HM Digital TDS-4TM Handheld TDS/Temp Meter Includes an internal digital thermometer Hold function -- saves measurements for convenient reading and recording Auto-off function -- automatically shuts off meter after 10 minutes of non-use to...
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                        MSRP: $37.00
                        $24.25 

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                        Handheld TDS Meter EZHandheld TDS Meter EZ
                        Part Number: TDS-EZ
                        MSRP: $38.33
                        $12.00 - $108.00

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                        HM Digital ZT-2 TDS MeterHM Digital ZT-2 TDS Meter
                        Part Number: TDS-ZT2
                        Alternate Part Number: ZT-2
                        HM Digital ZT-2 Handheld TDS Meter The HM Digital ZT-2 Handheld TDS meter is a handheld water quality tester that enables you to determine just how good or bad your water really is! These testers accurately measure the TDS level in your water....
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                          MSRP: $25.95
                          $14.99 

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                          Extech CL200 ExStik Chlorine Handheld MeterExtech CL200 ExStik Chlorine Handheld Meter
                          Part Number: CL200
                          • Direct reading of total chlorine in less than 2 minutes
                          • Low detection limit down to 0.01 ppm
                          • Unaffected by sample color or turbidity
                          • Memory stores, tags, and recalls up to 15 readings
                          • US EPA approved as an acceptable method of wastewater compliance monitoring of total chlorine
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                            $195.43 

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                            eXact 486101 iDip Bluetooth Smart Photometer SystemeXact 486101 iDip Bluetooth Smart Photometer System
                            Part Number: 486101
                            • Bluetooth wireless connection to a smartphone
                            • Easy storage and management of test results
                            • Time, date, and location are recorded with tests
                            • Results can be shared via email
                            • Choose only the tests you want to download
                            • GPS enabled
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                              $192.84
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                              HM Digital DM-1 Dual TDS MeterHM Digital DM-1 Dual TDS Meter
                              Part Number: DM-1-2538
                              • Available with 1/4" and/or 3/8" quick connect fittings
                              • Highly efficient and accurate due to its advanced microprocessor technology
                              • Displays TDS levels of the feed water and product water with in and out electrode probes
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                                $27.99 - $35.09

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                                HM Digital DM-2 Commercial In-Line Dual TDS MeterHM Digital DM-2 Commercial In-Line Dual TDS Meter
                                Part Number: DM-2
                                • Available with 1/4", 3/8" or 1/2" quick connect fittings
                                • Installs quickly and easily
                                • Diagnostic error messaging
                                • Shielded sensor cables
                                • Highly efficient and accurate due to its advanced microprocessor technology
                                • Auto-off function automatically shuts off meter after 3 minutes of non-use to conserve battery power
                                • Displays TDS levels of the feed water and product water with in and out electrode probes
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                                  MSRP: $58.00
                                  $44.63 - $51.51

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                                  HM Digital QC-1 Quick Check TDS Monitor 1/4" Push-inHM Digital QC-1 Quick Check TDS Monitor 1/4
                                  Part Number: QC-1
                                  • Tests for TDS or conductivity levels.
                                  • Eight programmable set points (by dip switch).
                                  • Bright LED lights
                                  • Excellent reverse osmosis or deionization monitor
                                  • Available with 1/4" quick connect tee or with no fitting
                                  • Installs quickly and easily
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                                    MSRP: $28.95
                                    $18.80 - $22.85

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                                    HM Digital SM-1 Inline Single TDS Monitor 1/4" Push-inHM Digital SM-1 Inline Single TDS Monitor 1/4
                                    Part Number: SM-1
                                    • Displays TDS levels of a single water line.
                                    • Wide range 0-9990 ppm
                                    • Factory calibrated - Meters can be recalibrated with a mini-screwdriver.
                                    • Comes equipped with quick connect tee fitting (1/4" standard)
                                    • Installs quickly and easily
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                                      MSRP: $35.00
                                      $25.89 

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                                      HM Digital TRM-1 Triple Inline TDS MonitorHM Digital TRM-1 Triple Inline TDS Monitor
                                      Part Number: TRM-1-38
                                      • Available with 1/4", 3/8" or 1/2" quick connect fittings
                                      • Displays TDS levels from 3 different points with electrode probes
                                      • Highly efficient and accurate due to its advanced microprocessor technology
                                      • Dual range 0-9990 ppm (from 0 - 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm)
                                      • Installs quickly and easily
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                                        $40.00 - $42.00

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                                        EC / TDS / TEMP Combo MeterEC / TDS / TEMP Combo Meter
                                        Part Number: COM-100
                                        HM Digital COM-100 EC/TDS/Temp Combo Meter Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature Three different calibration options (KCl, 442TM, NaCl), each with its own non-linear conversion factor Automatic...
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                                          MSRP: $76.96
                                          $50.71 - $245.95

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                                          AquaPro Upscale Consumer TDS/Temp MeterAquaPro Upscale Consumer TDS/Temp Meter
                                          Part Number: HMAP-1
                                          Alternate Part Number: AP-1
                                          • Measures total dissolved solids (TDS) and temperature
                                          • Automatic temperature compensation (ATC)
                                          • Water-resistant housing
                                          • Measurement range: 0-5000 ppm
                                          • Display: large and easy-to-read LCD screen
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                                            MSRP: $42.95
                                            $26.27 

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                                            Button Cell Battery - 1.5V (76A) L1154Button Cell Battery - 1.5V (76A) L1154
                                            Part Number: L1154
                                            Alternate Part Number: LR44
                                            Button Cell Battery - 1.5V (76A) L1154 1.5V battery for TDS-ZT2 , TDS-EZ , TDS-3 , TDS-4 , TDS-4TM , TM-1 , COM-80 , COM-100 , PH-80 , PH-200 , HMEC-3 , HI98121 , HI98129 , ORP-200 , and DM-1 meters. Meters that do not display anything when you...View Details
                                            $1.09 

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                                            20+ for $0.71 ea
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