The HM Digital HydroMaster (HM-500) monitors pH, Temp˚C/˚F, EC & TDS providing accurate, stable readings the user can rely on. The unit can be wall mounted, is portable thanks to its rechargeable battery, and can be used as a benchtop monitor with its stand.

 HydroMaster

The Most Versatile Continuous Monitor on the Market

HM-500: Continuous pH/EC/TDS/Temp Monitor 


Includes:
1 pH probe (SP-P5)
1 TDS/EC probe (SP-C5)
1 packet of pH Storage Solution (PH-PSTOR)
1 packet of 1000 ppm Buffer Solution (CP-1000)
1 packet of pH 7 Buffer Solution (PH-P7)
1 packet of pH 4 Buffer Solution (PH-P4)
2 Flotation Discs

​Specifications

HM Digital Inc         5819 Uplander Way, Culver City, CA 90230, USA          1 310 410 3100        info@hmdigital.com        www.hmdigital.com

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Measurement Range:
pH: 0.00 - 14.00 pH
Temperature: 0.0 - 80.0 °C / 32.0 - 176 °F
TDS: 0 - 9999 ppm / 0 - 10.00 ppt
EC: 0 - 9999 µS / 0 - 20.00


ATC
Range: 25°C (77°F)
Accuracy
pH: ± 0.02 pH
Temp: ± 0.5v 
TDS: ± 0.2% 
EC: ± 0.2 %


Measurement Scales
pH: pH
Temp: °C, °F
TDS: ppm (0.5 / ppm (0.7) / ppt (0.5) / ppt (0.7) 
EC: µS / mS

Resolution
pH: 0.1 pH
Temp: 0.1°C / 0.1 °F
TDS: ppm: 0.1 ppm (0 - 99.9 ppm) / 1 ppm (100 - 9999 ppm) / ppt: 0.01 ppt (0 - 10.00 ppt)

EC: µS: 0.1 µS (0 - 99.9 µS) / 1 µS  (100 - 9999 µS) / mS: 0.01 mS  (0 - 20.00 mS)

Power Source: AC 110 V - 220V / Rechargeable Lithium Ion Battery
Function Environment:
 0 - 50°C (0-122°C) / RH 80 % (EC Probe: 0 - 80°C)
Sensor Cable: 24-inch shielded Coaxial Cable
Dimensions: About 8 x 4 x 1.5 inches
Weight: 15.2 ounces for body / 5 ounces for two probes (without case)

Portable Ph Meter and EC TDS meter

•  Continuous pH/EC/TDS/Temp Monitor
•  Rechargeable battery
•  RF Resistant
•  Portable/Wall Mount/Benchtop
•  Data Storage: Up to 20 measurement readings
•  Auto Shut-Off: After 5 minutes
•  Alarm: Adjustable High & Low Set Point and on/off
•  Display: LCD Touch-Type Screen with Auto Back lighting
•  Probe: ABS with Platinum electrodes for EC / Single Junction pH Sensor