Description: The water quality monitor is the useful tool for testing PH/EC/TEMP of solution level. It looks like a pen, the portable size is good for carrying. Suitable for water sources, aquarium, hydroponics, laboratory and scientific testing, spas, swimming pools and other water systems. Feature: 3-in-1 meter design. It can be used to measure the pH, EC and temperature of the solution. The electrode probe can be replaced, with an ATC function. Easy to calibrate pH and TDS with a small screwdriver. Temperature measuring range between -50℃~70℃, able to withstand harsh conditions, offering longer durable services. Large and clear LCD with backlight, easy to read and accurately measuring functions. Suitable for water sources, aquarium, hydroponics, laboratory and scientific testing, spas, swimming pools and other water systems. Speciation: Battery: 4 x button battery (Not included) Size: 190 x 37 mm / 7.48 x 1.46 inch (appr.) Package included: 1 x PH/EC/TEMP Meter 1 x Screw Driver 1 x Manual Features 3-in-1 meter design. It can be used to measure the pH, EC and temperature of the solution. The electrode probe can be replaced, with an ATC function. Easy to calibrate pH and TDS with a small screwdriverLarge and clear LCD with backlight, easy to read and accurately measuring functions. Temperature measuring range between -50℃~70℃, able to withstand harsh conditions, offering longer durable services. Suitable for water sources, aquarium, hydroponics, laboratory and scientific testing, spas, swimming pools and other water systems.