Description
A digital water quality meter designed to measure water’s acidity, alkalinity, and temperature to help optimize its quality for gardening and water treatment applications. The highly responsive sensor probe utilizes a lithium glass membrane to instantly determine pH readings with highly precise ±0.1 accuracy. This pH pen tester for water features an IP-67 rating, specially sealed to withstand moisture and heat, as well as block out intrusive dust and sand. For further protection, the hydroponic pH meter is built with a sensor shield to safeguard your probe in between uses. The included 4.00 pH and 7.00 pH calibration solutions ensure consistently accurate measurements, the former also supporting proper storage conditions to help extend the lifespan of the pH and PPM meter.
FEATURES
- A pH reader for water quality assessment designed to help monitor and maintain proper pH levels.
- Measures the acidity, alkalinity, and temperature of water for gardens, aquariums, pools, and more.
- Sensor probe with sensitive glass membrane delivers instant pH readings with high accuracy.
- IP-67 rated to be sealed from high-volume moisture, dust, and sand; can also withstand high levels of heat.
- Lab-grade pH monitor testing kit includes ready-to-use 4.00 & 7.00 solutions for long-lasting precision.
APPLICATIONS
This fast-acting nutrient test alkalinity meter will help you determine how well your water uptakes nutrients. Fit for use as a pH meter for plants in horticultural settings like gardens, grow tents, greenhouses, and hydroponics systems. In addition, its application spans far beyond plant growing, capable of being a general pH level tester for water used in swimming pools, spas, aquarium fish tanks, and beverage homebrewing applications to help determine water safety.
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Works well, better than any of the yellow ones.
Calibration was simple.

Excellent PH pen.
I bought this to replace a cheap Vivosun ph pen that just stopped working. its just night and day between the two, for more than double the price you get accurate ph testing, high quality assembly, easy recalibration. Now that i have this pen i don't know how i ever managed with the cheap one or the ph testing chemicals. i heavily recommend this product and suggest that if you are serious about your soilless growing putting aside a little extra to get quality like this.

Great PH Pen
Very accurate comes with all the accessories Ina nice mini travel case bought it because it's way cheaper than Blue Lab PH Pen and was totally worth it!