1. Test the pH level and temperature of solution/water with data hold function. 2. Pocket size, lightweight and portable with switchable backlight & LCD display for clear reading. 3. Replaceable pH sensor probe - The electrode probe can be replaced with insert type for convenient and fast replacement. 4. function (automatic temperature compensation), automatic calibration and IP65 fully waterproof . 5. Apply in water sources, soil-free growing, aquarium, hydroponics, laboratory, spas, swimming pools and other water . Colour:White Material:plastic Package Contents: 1 x Probe Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.