HM Digital Pro Series Dual Probe pH/TDS/EC/Temp Meter - COM-360 - 0-14 pH - 0-9990 µS EC

Four Readings From One Handheld Tester - 0-14 pH Range

Checking pH, conductivity, dissolved solids and temperature usually means carrying several testers. This HM Digital Pro Series meter combines all four in one handheld unit, so you can check a reservoir or nutrient solution quickly. It uses a detachable probe with platinum electrodes and a pH glass sensor, and the housing is water resistant.

Sold as a single unit, it suits home growers setting up a hydroponic system and small commercial teams who want a dependable tester for routine solution checks. The sensor is replaceable, so you can service the meter without replacing the whole unit.

Key Features & Benefits

• pH, EC, TDS and temperature in one meter — one tool covers the routine checks on a nutrient solution.
• Detachable platinum electrodes and pH glass sensor — the probe can be serviced separately; the replacement sensor model is SP-CP.
• Water-resistant housing — it holds up in damp growing areas.
• Two TDS scales — read 0-8560 ppm on the 0.7 scale or 0-5000 ppm on the 0.5 scale to match your reference method.
• Starter kit included — it ships with a translucent cap, 2 AAA alkaline batteries, pH 4 and 7 calibration solutions, pH storage solution and a lanyard.

Who Should Use HM Digital Pro Series Dual Probe Meter

Use it if you manage a hydroponic reservoir, mix nutrient solutions, or monitor water quality for vegetative growth and flowering. It suits both hobby and licensed commercial cultivation.

About HM Digital Pro Series Dual Probe Meter

HM Digital makes handheld water quality meters. This model measures pH from 0 to 14 in 0.1 pH steps, EC from 0 to 9990 µS or 0 to 9.99 mS, and temperature from 0 to 55 °C (32 to 130 °F) in 0.1 °C/°F steps. Accuracy is +/- 2%. It runs on 2 AAA batteries, which are included.

Frequently Asked Questions

Q: What does this meter measure?
A: It measures pH, electrical conductivity (EC), total dissolved solids (TDS) and temperature. The readings suit nutrient solution and water quality checks.

Q: What is the difference between EC and TDS?
A: EC measures how well a solution conducts electricity, which reflects its dissolved salts. TDS is an estimate of dissolved solids shown in ppm. This meter offers 0.5 and 0.7 TDS scales.

Q: Does it include calibration solutions?
A: Yes. The box includes pH 4 and pH 7 calibration solutions plus a pH storage solution. Batteries, a translucent cap and a lanyard are also included.

Q: Can I replace the sensor?
A: Yes. The probe is detachable and the replacement sensor model is SP-CP. This lets you service the meter instead of replacing it.

Q: What power does it need?
A: It uses 2 AAA batteries, and alkaline batteries are included in the box.