[Digital angle gauge with four measuring units]- degrees, percent, mm/m, and in/ft, to meet your different demands. [Portable Use]- Easy-to-read large LCD display for quick and easy viewing, Green backlight allows you to read the measurement in dim light. [Functional Design]- Backlight auto-off after 30 seconds with no movement, Unit auto turn-off after 3 minutes of no operation, or manually turn off the unit by long-pressing OFF key 4s. [Measurement freezing function]- Press the HOLD button to save angle measurement readings, convenient in recording and checking the data measured. [Application]- It is an ideal angle gauge for home improvement, construction, carpentry, machinery, and many other fields. Specifications: Measuring range: 4*90 Resolution: 0.05 Accuracy: 0.2 Working temperature: 0 C ~ 40 C Waterproof: IP54 color: black Power supply: 2* AAA batteries(NOT INCLUDED) Dimensions: 54*56*26mm Note: Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting. Package Includes: 1 x Digital Inclinometer