1. Display: LCD digital display 2. Temperature: automatic temperature compensation 0-60 3. Working environment: 0-60 (32.0-140F); RH 100% 4. Waterproof: Ip67 5. Automatic shutdown: 5 minutes Data retention: value retention Battery: 3 x 1.5V (LR44) (not including battery) Screen size: 33 x 24mm Size: 183 x 37 x 37mm(7.2 x 1.5 x 1.5inch) Weight: 90g Type: Backlight color:As shown Material:composite material Package Contents: 1 x digital hydrogen meter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. 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. Sold by-Minnanxin