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Ph Metro PH-200 HM DIGITAL is a portable pH meter with microprocessor, waterproof (IP67), ATC and fast reading on screen. Ideal for adjusting irrigation water in indoor cultivation, hydroponic tanks and precise control of cannabis plants with consistent accuracy.

The Ph Meter PH-200 HM DIGITAL is designed to accurately measure the value of pH 0.00–14.00 in a wide range of liquids, including those with up to 50% alcohol and a minimum conductivity of 50 µS.
It integrates automatic temperature compensation (ATC), with readings in ºC or ºF, and a thermal sensor exposed very close to the electrode that speeds up stabilization and improves data reliability.
The IP67 body resists splashes and work in demanding environments; the pen format (185 × 34 × 34 mm, 96.4 g) makes it easy to transport between mixing tables, tanks, and drainage areas.
The electronics offer 0.01 pH resolution, ±0.1 pH accuracy, and 1-point auto-calibration with memorized buffers pH 4/7/10. Includes replaceable electrode, Data Hold function to fix readings, auto-off after 5 minutes, and powered by 3 x 1.5 V batteries (included). The box includes a protective cap, cord, pH 7 powder to prepare calibration solution, storage solution, and instructions.
In cannabis cultivation, controlling the pH of base water, nutrient mixes, and drains prevents salt blockages and improves the assimilation of macro and microelements.
Within meters for cultivation and indoor accessories, this instrument provides speed, repeatability, and a very short learning curve, ideal for standardizing protocols in indoor grow facilities.
Available at Hydroponics Blanes, online grow shop, and Grow Shop in Spain with technical advice and discreet shipping from a trusted Grow Shop.
In indoor cultivation pH stability determines real access to nutrients. Ph Meter PH-200 HM DIGITAL speeds up validation of starting water, recirculating tanks, and drains, allowing you to maintain the target value for each stage (growth, transition, flowering). The waterproof format makes it comfortable to work near the tank without worries, while the fast reading reduces time during recipe preparation and corrections.
It is used to measure pH with high resolution in nutrient solutions and irrigation water, helping to decide when to adjust with regulators, when to dilute, or when to maintain the mix. In cannabis plants the precise reading minimizes burnt tips, chlorosis due to blockage, and absorption problems, improving homogeneity between irrigations and harvests.
As a work tool it stands out for IP67, ATC, replaceable electrode, Data Hold, and auto-calibration with pre-memorized buffers. The option to display ºC/ºF provides thermal context to each reading. The pen-type ergonomics allow maneuvering between pots, tables, and tanks without hindrance, making it a key piece of the meters for cultivation set in any room.
1) Preparation: rinse the electrode with clean water and dry with paper without rubbing. Turn on and choose ºC or ºF according to preferences.
2) Calibration: prepare the pH 7 buffer (included as powder for 100 ml) with distilled water; perform 1-point auto-calibration. For extreme ranges, make an additional adjustment with memorized pH 4 or pH 10.
3) Measurement: immerse the tip in the tank, mix, or drain; stir gently; wait for stabilization; use Data Hold if you need to write down the value.
4) Adjustment: correct with regulators up to the planned setpoint for each phase; measure again to verify.
5) Maintenance: rinse after each use, place the cap with storage solution when appropriate, and replace the electrode if stabilization becomes slow or calibration requires large corrections. Check batteries; auto-off protects autonomy.
The price corresponds to a waterproof IP67 meter with ATC, 0.01 pH resolution, auto-calibration, Data Hold, and replaceable electrode. Check offers and buffer kits at Hydroponics Blanes, a reference Grow Shop in Spain for indoor accessories.
Available at Hydroponics Blanes, trusted Grow Shop with discreet shipping and expert support. The online grow shop advises on calibration routines, selection of regulators, and joint control with EC/temperature for indoor grow facilities focused on cannabis cultivation.
For projects that require consistency, the Ph Meter PH-200 HM DIGITAL provides stable readings, ATC, and easy maintenance with interchangeable electrode.
A practical ally for standardizing recipes and ensuring reliable parameters in indoor cultivation of cannabis plants, backed by Hydroponics Blanes and efficient logistics from a trusted Grow Shop.
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