HM Digital Hydromaster 500 - Continuous pH/TDS/EC/Temp meter

Description

The HM Digital HydroMaster HM-500 continuously monitors pH, electrical conductivity (EC), total dissolved solids (TDS) and temperature. It provides accurate, stable readings. Its rechargeable battery makes it portable, and it can also be wall mounted or used on a benchtop with its stand. Applications include hydroponics, laboratories, pools and aquariums.

• LCD touch screen with automatic backlighting and simultaneous pH, EC/TDS and temperature display.
• Stores up to 20 measurement readings.
• Automatic shut-off after five minutes.
• Adjustable high and low alarm set points with alarm on/off control.
• RF resistant.
• Replaceable sensors; the supplier describes an ABS probe with platinum EC electrodes and a single-junction pH sensor.
• Automatic temperature compensation (ATC) using three temperature coefficients.
• Digital push-button calibration to any point within the meter’s range; factory calibrated for pH, EC and TDS.
• Supplier-listed warranty: Three years.

Specifications

• Measurement scales: pH; temperature in °C or °F; EC in µS or mS; TDS in ppm or ppt using 0.5 or 0.7 scales.
• pH range: 0–14 pH.
• EC range: 0–9990 µS / 0–20 mS.
• TDS range: 0–9990 ppm / 0–10 ppt.
• Temperature range: 0–55°C / 32–130°F.
• pH accuracy: ±0.1 pH.
• EC and TDS accuracy: ±2%.
• Temperature accuracy: ±1°C / ±1.8°F.
• pH resolution: 0.1 pH.
• Temperature resolution: 0.1°C / 0.1°F.
• EC resolution: 0.1 µS from 0–99.9 µS; 1 µS from 100–999 µS; 10 µS from 1000–9990 µS; 0.01 mS from 0.01–20.00 mS.
• TDS resolution: 0.1 ppm from 0–99.9 ppm; 1 ppm from 100–999 ppm; 10 ppm from 1000–9990 ppm; 0.01 ppt from 0.01–10.00 ppt.
• Power: Rechargeable lithium-ion battery; the supplier lists an AC 110–220 V power source.
• Dimensions: 20 × 11 × 3.6 cm (8 × 4 × 1.4 inches).
• Weight: 430 g / 15.1 oz.

Kit Contents

• Power cable.
• pH 4 and pH 7 calibration solutions.
• pH storage solution.