SmartSensor PH818 Water Quality Tester Pen

1. Test the pH level and temperature of the solution/water with data storage function.
2. Pocket size, lightweight and portable with switchable backlight and large LCD display for clear reading.
3. Replaceable pH Sensor Probe - The electrode probe can be replaced with an insert type design for convenient and quick replacement.
4. ATC (automatic temperature compensation) function, automatic calibration and IP65 fully waterproof design.
5. Apply to water sources, soilless cultivation, aquariums, hydroponics, laboratory, spas, swimming pools and other water systems.
6. Power supply: 2 x AAA batteries (not included)