Features 1、MAIN FUNCTION: Multifunction water quality detector, mainly used to measure the salinity and temperature of the solution and water, which is easy to operate and use. 2、MEASUREMENT RANGE: The temperature measurement range is 0℃‑100℃, salinity measurement range is 0‑199.9ppt, widely used in aquariums, swimming pools, laboratories, aquaculture, etc. 3、HIGH QUALITY MATERIALS: Made of high quality ABS materials, strong and durable, corrosion resistant, providing fast and accurate measurements. 4、ANTI SLIP AND EASY TO HOLD: Salinity temperature tester with frosted cover and function keys, anti slip and comfortable to hold, accurate and convenient measurement. 5、BACKLIGHT FUNCTION: With a backlit display, easy to read, clear and intuitive display of measurement results, does not affect the use in the dark. Specifications Item Type: Salinity TEMP Meter Material: ABS Weight: Approx. 452g / 15.9oz Range: Temperature: 0℃-100℃, Salinity: 0-199.9ppt Resolution: Temperature: 0.1℃, Salinity: 0.1ppt Accuracy: Temperature: ±0.5℃, Salinity: ±2%F.S Temperature Compensation: 0℃-50℃ Working Temperature: 0℃-50℃ Product Size: Approx. 161x75x40mm / 6.3x3.0x1.6in Battery: 1 x 6F22 9V Battery (Battery Not Included) Application: Aquarium, swimming pool, laboratory, drinking water Package List 1 x Meter (Battery Not Included) 1 x Probe 1 x Test Needle 1 x Modulation Tool 1 x Manual