pH and Temperature Meter HM PH-80 and PH-200

PH and Temperature Meters Brand: HM

PH-80 and PH-200 models

Product images are illustrative and may vary from the physical product.

NEW! The PH-80 and PH-200 are reliable pH and temperature meters, ideal for testing applications such as hydroponics and landscaping, swimming pools and spas, aquariums and reef tanks, water ionizers, potable, process water, and more.


Measure the pH and temperature.

One-touch automatic digital calibration


Simultaneous display of temperature

Sleek and lightweight design

Large LCD display

Automatic temperature compensation (ATC)

Auto power off function, data save function and low battery indicator.

Includes storage solution in a sponge embedded in a translucent lid.

Factory Calibrated: The PH-80 meter is factory calibrated to pH 7.0. The meter can be quickly and easily recalibrated with digital calibration to pH 4.0, 7.0 or 10.0 using the simple one-touch meter process.

Includes a cap, batteries, storage solution and pH 7.0 buffer

For the PH-80

PH range: 0 - 14

Temperature range: 1-80 ° C; 33-176 ° F

Resolution: 0.1 pH; Temperature resolution is 0.1 ° C / F

Accuracy: +/- 0.2 pH; Temperature accuracy is +/- 2%

Calibration: Automatic digital calibration (one point)

Minimum EC / TDS: 10 μS / 5 ppm

Electrode: Glass sensors and reference tube electrodes

Housing: waterproof

Power source: 3 x 1.5V button cell batteries (model LR44 or equivalent, included)

Dimensions: 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches)

Weight: 53.9 g (1.9 oz)

For the PH-200

PH range: 0 - 14

Temperature range: 0-55 ° C; 32-130 ° F

Resolution: 0.01 pH; Temperature resolution is 0.1 ° C / F

Accuracy: +/- 0.1 pH; Temperature accuracy is +/- 2%

Calibration: Automatic digital calibration (one point) with digital adjustment

Minimum EC / TDS: 5 uS / 10 ppm

Electrode: Glass probe and reference tube electrodes replaceable.

Enclosure: IP-67 grade waterproof (submersible and floating)

Power source: 3 1.5V button cell batteries (LR44 or equivalent, included)

Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)

Weight: 96.4 g (3.4 oz)

Replaceable sensor (SP-P2 model)

Recommended accessories: pH Electrode Storage Solution (PH-STOR) and pH Calibration Buffers (PH-BUF). Note that the meter includes single-use packets of the storage solution and a pH 7.0 buffer. This is sufficient in the beginning, but additional storage solutions and calibration buffers will be needed in the future (exactly when these depend on individual usage and needs). Storage solution and pH buffers (while in powder form) do not expire.

Frequent questions:

The sponge on the lid is dry. It's okay?

Yes. During shipping, the solution may leak or dry out. This will not harm your meter, and it is perfectly fine. Before use, pour a small amount of the electrode buffer solution (from the Mylar package) onto the sponge so that it is damp. Replace the cap and allow the sensor to soak for 15 minutes while standing. (NOTE: The sponge is simply to retain the storage solution so it doesn't spill, it should be kept in the lid.)

How often do I need to calibrate?

All pH meters must be calibrated anywhere from before each use to at least once a month. Calibration frequency depends on usage and application, but you should calibrate at least monthly for proper results and a longer life for your meter. A pH 7.0 solution pack is included with the meter. Additional pH solutions for calibration must be purchased later. See the calibration instructions in the user guide.

I use my meter for hydroponics. Do you need any special care?

Yes. Nutrients in a hydroponic tank quickly adhere to the sensor and may not be read correctly. It is very important to rinse the sensor in distilled water after each use. Otherwise, you will only be measuring the nutrients that are already in the sensor.

Can i use the PH-80 or PH-200 to test distilled, DI or RO water?

No. The meter is not designed for pure or very low TDS water. Water needs at least 10 ppm TDS (μS EC) to have a reading.

Additional information

Weight 1 kg

PH-80, PH-200

Data sheet

PH-80 meter

PH-200 meter


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