HM Digital - HydroMaster HM-500 Continuous pH/TDS/EC/Temp Monitor

Brand: HM Digital

HM Digital HydroMaster HM-500 Continuous pH/TDS/EC/Temp Monitor

The HM Digital HydroMaster HM-500 is HM Digital's most versatile continuous monitor, indicating pH, EC/TDS and temperature with accurate, stable readings. A touch-screen LCD with automatic backlight, automatic buffer recognition during calibration and adjustable alarms make it a full-time watch on nutrient solution quality.

The HM-500 can be wall mounted with the included bracket, set up as a benchtop monitor on its stand, or carried as a portable unit on its rechargeable lithium-ion battery. In indoor cultivation and controlled-environment agriculture facilities it keeps probes in the reservoir and sounds an alarm when pH, temperature or EC/TDS leaves the set range, with alarm delay options to avoid nuisance alerts during tank work.

Available Options

• HM-500 monitor - ships with SP-P5 pH probe, SP-C5 EC/TDS/temp sensor, wall mount bracket, USB power adapter and cable, 2 probe-holder float discs, and pH 4, pH 7, 1000 ppm and pH storage solution packets

Key Features

• Continuous pH, EC/TDS and temperature monitoring with three parameters on screen
• pH range 0.0 - 14.0 (0.1 pH resolution, +/- 0.1 pH accuracy)
• EC range 0 - 9990 uS / 0 - 20.00 mS; TDS range 0 - 9990 ppm / 0 - 10.00 ppt; EC/TDS accuracy +/- 2%
• Temperature range 32 - 130 deg F (0 - 55 deg C), +/- 1 deg accuracy; ATC from 0.0 - 60.0 deg C
• Scales: pH, uS, mS, ppm/ppt 0.5 (NaCl) and ppm 0.7 (442)
• Touch-screen LCD with automatic backlight and automatic pH buffer recognition
• Adjustable high/low alarms for pH, temperature and EC/TDS; continuous, 10-second-every-10-minutes or mute alarm modes; 15 or 30 minute alarm delay
• Stores up to 20 readings
• Powered by AC 110 - 240 V USB adapter or built-in rechargeable lithium-ion battery (approx. 5 hour charge)
• Wall mount, benchtop stand or portable use; 2 m (80 in) shielded probe cables
• Approx. 8 x 4 x 1.4 in (20 x 11 x 3.6 cm); body 15.2 oz (0.43 kg), probes 5 oz (140 g)
• Three-year limited warranty on the monitor; six months on the probes

Ideal Applications

• Continuous reservoir and nutrient tank monitoring with out-of-range alarms
• Fertigation and batch-mixing stations
• Benchtop water-quality checks in facility labs
• Portable monitoring across multiple rooms or systems