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Pen Type Meters / Hand Held Instruments

Best Quality, Most Reliable Price, 100% Genuine Product, from HM Digital's most Preferred and Trusted Partner

Wide Range of Pen Type / Hand Held Instruments to measure Parameters like

1) TDS / Conductivity
2) pH
3) ORP

Best Quality, Most Reliable Price, 100% Genuine Product, from HM Digital's  most Preferred and Trusted Partner

DM-1 On line TDS meter for Domestic Water Purifiers

Attractive Priced On Line TDS Meter from HM Instruments for Domestic Water Purifier Application. Monitor Performance of your purifier on line.


•Displays TDS levels of the feed water and product water with in & out electrode probes.
•Highly efficient and accurate due to its advanced microprocessor technology.
•Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use.
•Dual Range 0-9990 ppm (From 0 - 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.)
•Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.


TRM-1 Triple In-Line TDS Monitor


The TRM-1 is a unique monitor offering the user 3 points of contact during the filtration process. This TDS monitor allows for checking TDS levels at 3 points, such as with DI/RO (deionization / reverse osmosis), or multiple points in an RO system, and more.


Brix Refractometer - SCM 1000


The Smart Digital Refractometer that is always ready.


Salt Refractometer - RSM 1000


Smart Digital Refractometer to measure Salt%


COM 360 Dual Side Meter


COM-360 is a new breed of combo pH/EC/TDS/Temp meters with two different sensors on each end of the meter. 


COM 100 Conductivity / TDS Meter

HM Water Proof TDS meter with 2 years warantee From the mfg of world's most popular TDS tester


•Measures electrical conductivity (EC), total dissolved solids (TDS), salinity and temperature.
•UPGRADED: Four scales: µS, mS, ppm, ppt (mS and ppt are new)
•Three different non-linear EC-to-TDS conversion factors (KCl, 442TM, NaCl).
•Automatic Temperature Compensation (ATC) using three temperature coefficients
•Measurement Range: 0-9990 µS; 0-8560 ppm; 0-9.99 mS; 0-8.56 ppt
•Digital Calibration (push button) to any point within the meter's range
•Display: large and easy-to-read LCD screen.
•Replaceable Sensor (model SP-C1)
•Factory Calibrated: The COM-100 meter is calibrated with a 1413 µS solution. 


AP 2 Conductivity Meter

The Most Popular handheld conductivity tester in the World


•Measures conductivity and temperature of water
•Automatic Temperature Compensation (ATC)
•Water-resistant housing
•Measurement Range: 0-5000 ppm
•Digital Calibration (push button)
•Auto-off function, data-hold function and low-battery indicator.
•Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
•Factory Calibrated: The AquaPro is calibrated with a 342 ppm NaCl solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver.
•Includes a cap and batteries.
•Comes in a retail-oriented package.
•Magnetic body (patent pending)


AP-1 TDS Meter


•Measures total dissolved solids (TDS) and temperature.
•Automatic Temperature Compensation (ATC)
•Water-resistant housing
•Measurement Range: 0-5000 ppm
•Digital Calibration (push button)
•Auto-off function, data-hold function and low-battery indicator.
•Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
•Factory Calibrated: The AquaPro is calibrated with a 342 ppm NaCl solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver.
•Includes a cap and batteries.
•Comes in a retail-oriented package.
•Magnetic body (patent pending)


pH 80

Reliable, Rugged, Accurate, Handy , Pen Type pH Meter from HM


FEATURES

  • Measures pH and Temperature
  • One-touch automatic digital calibration
  • Water resistant
  • Simultaneous temperature display
  • Sleek, lightweight design
  • Large LCD display
  • Automatic Temperature Compensation (ATC)
  • Auto-off function, data-hold function and low-battery indicator
  • Includes storage solution in a sponge embedded in a translucent cap
  • Factory Calibrated: The PH-80 meter is factory calibration to pH 7.0. The meter can easily and quickly be recalibrated with digital calibration to pH 4.0, 7.0 or 10.0 using the meter's simple one-touch process.


pH 200 Water Proof pH Meter from HM

Reliable, Rugged,Premium, Accurate, Handy, Waterproof pH Meter from HM


FEATURES

  • Measures pH and Temperature
  • Auto-ranging three point calibration with digital fine tuning
  • Includes storage solution in a sponge embedded in a clear cap
  • Waterproof housing (IP-67 rating)
  • Simultaneous temperature display
  • Measurement Range: 0-14 pH
  • Digital automatic calibration (one point), with digital fine tuning
  • Automatic Temperature Compensation (ATC)
  • Auto-off function, data-hold function and low-battery indicator
  • Display: large and easy-to-read LCD screen includes simultaneous temperature reading
  • Replaceable Sensor (model SP-P2)
  • Factory Calibrated: The PH-200 meter is three-point checked and factory calibrated to pH 7.0.  It can be re-calibrated to any point in its range with digital calibration using the push buttons.
  • Includes a cap, batteries, lanyard, and pH 7.0 buffer


DM 2 Dual TDS Monitor


The DM-2 is a commercial grade monitor measuring TDS feed (input) water vs. product (output) water of a water filtration system at any time. With its shielded cables and diagnostic messaging this robust device is ideal for Reverse Osmosis (RO), Deionized water (DI) filtration systems that work well in applications such as drinking or potable water, Water treatment, Aquariums, Hydroponics and many more. 


TDS 3


•Ideal for commercial use. Includes a carrying case with belt clip.
•Highly efficient and accurate due to its advanced microprocessor technology.
•Hold Function: saves measurements for convenient reading and recording.
•Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries.
•Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image.
•Built-in digital thermometer
•Display: large and easy-to-read LCD screen.


ORP 200 Pen Type ORP Meter

Rugged, Accurate, Reliable Pen Type ORP Meter at Attractive Price from HM Instruments


FEATURES

  • Measures Oxidation Reduction Potential (Redox) and Temperature
  • Auto-ranging calibration with digital fine tuning
  • Includes storage solution in a sponge embedded in a clear cap
  • Waterproof housing (IP-67 rating)
  • Simultaneous temperature display
  • Digital Calibration (push button)
  • Auto-off function, data-hold function and low-battery indicator.
  • Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
  • Replaceable Sensor (model SP-O2)
  • Factory Calibrated: The ORP-200 meter is factory calibrated to +92 mV The meter can be easily recalibrated with digital calibration using the push buttons, rather than a screwdriver.