Specifications: Range: pH 0.00 ~ 14.00 TEMP: -50C ~ 70C (-58F ~ 158F) Resolution: pH 0.01 TEMP: 0.1C (0.2F) Accuracy: pH 0.1 TEMP: 1.0C (2.0F) Temperature Compensation: 0 Centigrade~ 50 Centigrade (32F ~ 122F) Environmental temperature: 0 Centigrade ~ 50 Centigrade (32F ~ 122F) Power supply: DC 6V (Power Adapter Usable) Battery: 41.5V AG-13 Button Cell Batteries (NOT Included) Color: Yellow Material: ABS Length of Temperature Sensore: Approx. 90.5cm / 35.6in Length of pH Electrode: Approx. 119cm / 46.8in Item Size: Approx. 7.5 * 6.7 * 2.5cm / 2.9 * 2.6 * 1.0in (Excluding Temperature Sensore) Item Weight: Approx. 57.9g / 2.0oz (pH & TEMP Meter Body) Package Size: Approx. 21 * 10.4 * 5cm / 8.3 * 4.1 * 1.9in Package Weight: Approx. 299g / 10.5oz Features: Simple to operate, strong and durable to use. Separated pH and temperature sensor probes pH & TEMP meter. Automatic shutdown and online monitoring. Apply in water sources, aquarium, hydroponics, spas, swimming pools and other water systems. CE and RoHS certificated to offer safer and precise measurement. Clear LCD with backlight, easy to read and accurately measuring functions. Replaceable BNC pH sensor probe with protective cap. Very convenient to change its electrode, and completes with various industry test needs.