Features: [Quality Material] Made of quality ABS material, more durable. [Titanium Alloy Probe] -rust design & no magnetic interference, ensuring high . [Backlight Display] Easy to read and does not affect the use in the dark. [Multiple Measurements] 3 in 1, EC// Measurement, more practical. [Switchable Units] ℃ / ℉ switchable in one click, convenient to operate. [Data Hold] The data retention function is convenient for checking the after being taken out of the solution. [Wide Applications] Suitable for the measuring of drinking water, laboratory, industrial waste water, aquarium, swimming pool, aquaculture, rice fields, etc. Specifications: Model: TPH01648 / TPH01648A (Optional) Material: ABS Color: White / Yellow (Optional) Power Supply: 2 * 1.5V AG-13 Battery (NOT included) Measurement : : 0-9999ppm EC: 0-9999μscm : 0.1~80.0℃ (32.0-176.0℉) Compensation: √ Data Hold: √ Item Size: Approx. 155*30*15mm / 6.1*1.18*0.59in Item Weight: Approx. 57g / 2.01oz Package Size: Approx. 167*45*27mm / 6.57*1.77*1.06in Package Weight: Approx. 85g / 3oz Packing List: 1 * 1 * User Manual (English)