The versitile HM-500 continuous monitor indicates EC/TDS, pH, and Temperature. With its rechargeable, integrated battery this unit is portable, or can be wall mounted with the included bracket, or can be used bench-top with the integrated stand. To make it even more user-friendly, the HM-500 comes equipped with touch screen, high and low alarm set points, and recorded readings. It is ideal for hydroponics and other applications such as labs, pools, and aquariums.

FEATURES:

Continuous pH/EC/TDS/Temperature Monitor
Rechargeable battery
RF Resistant
Portable, wall mount, or benchtop use
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
Warranty:  3 years

PRODUCT DESCRIPTION:

Measurement Scales
  pH: pH
  Temperature: °C, °F
  TDS: ppm (0.5 / ppm (0.7) / ppt (0.5) / ppt (0.7)
  EC: µS / mS
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
Resolution
  pH: 0.1 pH
  Temperature: 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)
ATC: Yes
Accuracy
  pH: ± 0.02 pH
  Temperature: ± 0.5v
  TDS: ± 0.2%
  EC: ± 0.2 %
Power Source: AC 110 V – 220V / Rechargeable integrated Lithium Ion Battery
Suitable Ambient Conditions: 0 – 50°C (0-122°F) / RH 80% (EC Probe: 0 – 80°C)