HM Digital Pen Style pH/Temp Meter - 0-14 pH Range - Water Resistant

Check Solution pH and Temperature in One Pen - 0-14 pH Range

Nutrient solution that drifts out of range slows plant uptake, and guessing is costly. This pen-style meter reads pH and temperature together, so you can adjust a reservoir with current numbers. It uses glass sensor and reference tube electrodes and calibrates at one point automatically.

Sold as a single unit, it suits home gardeners, small indoor setups and growers who want a spare or a dedicated meter for each reservoir or room.

Key Features & Benefits

• pH and temperature readings — monitor both values without a second tool.
• One-point automatic calibration — calibrate against the included pH 7.0 buffer powder.
• Water resistant body — handles the damp conditions of hydroponic work.
• 0.1 pH resolution — shows small changes in your solution.
• Batteries included — three button cell batteries come in the box.

Who Should Use HM Digital Pen Style pH/Temp Meter

Anyone who manages nutrient solution in hydroponic systems or watering water for indoor or outdoor cultivation, from first-time hobbyists to commercial teams needing extra meters.

About HM Digital Pen Style pH/Temp Meter

HM Digital model HM-PH-80 measures pH from 0 to 14 with +/- 0.2 pH accuracy and temperature from 1-55 °C (32-130 °F). It includes a translucent cap, batteries, storage solution and pH 7.0 buffer powder.

Frequently Asked Questions

Q: What is included with the meter?
A: The box holds a translucent cap, batteries, storage solution and pH 7.0 buffer powder. You can start testing once you mix the buffer for calibration.

Q: How does calibration work?
A: The meter uses digital automatic calibration at one point. You place the electrode in pH 7.0 buffer solution and the meter calibrates against it.

Q: How precise are the readings?
A: pH resolution is 0.1 pH with accuracy of +/- 0.2 pH. Temperature accuracy is +/-2%.

Q: What does pH resolution mean?
A: Resolution is the smallest step the display shows. At 0.1 pH, the meter reports changes in tenths of a pH unit.

Q: What batteries does it use?
A: It runs on three 1.5V button cell batteries, LR44 or equivalent, and they are included.

Q: Can I use it in water?
A: The meter is water resistant, so splashes are fine. Keep the electrode wet with storage solution and replace the cap after use.