HM Digital Replacement pH Sensor for PH-200 and COM-360 Meters - 1 Count

Restore Reliable pH and Temperature Readings - Single Sensor

A worn sensor makes a pH meter drift, lag or give inconsistent numbers, and that puts nutrient solution management at risk. This replacement sensor fits the HM Digital PH-200 and COM-360 meters, so you can renew the part that wears out instead of replacing the whole meter. It measures pH and temperature, and it uses a glass pH element with a reference tube.

Each order is one sensor. That suits a grower with a single meter who wants a spare on the shelf, as well as a small operation swapping a probe when readings become unreliable.

Key Features & Benefits

• Fits PH-200 and COM-360 meters — renews the meter you already own.
• Measures pH and temperature — one probe covers both checks on a nutrient solution.
• Glass pH sensor with reference tube — built for precise pH measurement.
• Storage cap with sponge included — protects the sensor between uses.

Who Should Use HM Digital Replacement pH Sensor

Hydroponic growers, home gardeners and commercial cultivation teams who run a PH-200 or COM-360 meter and see inconsistent readings or declining performance.

About HM Digital Replacement pH Sensor

HM Digital makes this replacement probe, product code HM-SP-P2, for its PH-200 and COM-360 meters. It ships as a single unit and measures pH and temperature. The sensor measures 7.2 x 7 x 7 in as packaged and weighs 0.6 lb for shipping.

Frequently Asked Questions

Q: Which meters does this sensor fit?
A: It is designed for the HM Digital PH-200 and COM-360 meters. Check your meter model before ordering.

Q: When should I replace my sensor?
A: Replace it when performance declines or readings become inconsistent. Those are signs the sensor has worn out.

Q: Does it need calibration?
A: Yes. Calibrate it with a pH buffer solution to get the best performance from it.

Q: What does the reference tube do?
A: In a glass pH sensor, the reference tube provides a stable baseline against which the glass element's signal is compared. That comparison is how the meter arrives at a pH value.

Q: How should I store the sensor?
A: Put it in the included cap with the sponge whenever you are not using it. This helps protect the sensor and extend its life.

Q: Does it also read temperature?
A: Yes. It measures both pH and temperature.