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. 1 x Meter (Battery Not Included)1 x Probe1 x Test Needle1 x Modulation Tool1 x Manual Item Type: Salinity TEMP MeterMaterial: ABSWeight: Approx. 452g or 15.9ozRange: Temperature: 0℃-100℃, Salinity: 0- 199.9pptResolution: Temperature: 0.1℃, Salinity: 0.1pptAccuracy: Temperature: ± 0.5℃, Salinity: ±2 percent F.STemperature Compensation: 0℃-50℃Working Temperature: 0℃-50℃Product Size: Approx. 161x75x40mm or 6.3x 3.0x 1.6inBattery: 1 x 6F22 9V Battery (Battery Not Included)Application: Aquarium, swimming pool, laboratory, drinking water Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.