1[2 IN 1 DESIGN] TDS temperature tester, supports the measurement of water temperature and TDS value, provides fast and accurate measurement. 2[BACKLIGHT BUTTON] Supports backlight display, which is easy to read, does not affect the use in the dark, and displays the measurement results intuitively and clearly. 3[SWITCH BUTTON] With ppt ppm conversion button, you can select the appropriate measurement unit according to the actual situation to meet the needs of use. 4[HIGH QUALITY MATERIAL] Using high quality ABS plastic material, it is safe and durable, corrosion resistant, abrasion resistant, and has a long service life. 5[NON SLIP DESIGN] It is designed with frosted cover and function keys, which is non slip and comfortable to hold, suitable for measuring drinking water, hydroponics, aquariums, swimming pools, laboratories, etc. Item Type: TDS Temperature Meter Material: ABS Weight: Approx. 451g / 15.9oz Product Size: Approx. 16.5x7.5x3cm / 6.5x3.0x1.2in Scope: Temperature: 0-100 TDS: Minimum: 0-1999ppm, Maximum: 0-19.99PPT Resolution: Temperature: 0.1 TDS: Minimum: 1PPM, Maximum: 0.01PPT Accuracy: Temperature: 0.5 TDS: 2%F.S Temperature Compensation: 0-50 Working Temperature: 0-50 Battery: 1 x 6F22 9V Battery (Battery Not Included) Wide Range of Applications: Suitable for measuring drinking water, hydroponics, aquariums, swimming pools, laboratories, etc. 1 x Detector (Battery Not Included) 1 x Probe 1 x Probe Needle 1 x Modification Tool 1 x Manual 1. Please allow 1& 8209;2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.