0.05‑100M Digital Distance Meter Level Angle Gauge Handheld Range Finder USB Charging Voice Broadcasting Data Recording Item Type: Distance Meter Measurement Range: Approx. 0.05-100m / 0.16-328ft Measurement Accuracy: ±2mm Display Accuracy: 1mm Class: Class 2 Power: <1mW Area volume Measurement: Yes Pythagorean Theorem Measurement: Yes Addition and Subtraction: Yes Storage Function: Yes Continuous Measurement: Yes Maximum Minimum Measurement: Yes Multiple Line Display: Yes Screen Size: 2.4 inch Water Proof Class: IP54 Working Temperature Range: 0℃-40℃ Storage Temperature Range: -10℃-50℃ Battery: 3 x Rechargeable AAA Battery 800mAhx3 (included) Light Automatic Off Time: After 30 seconds Meter Automatic Off Time: After 3 minutes Size: Approx. 5.16 x 2.53 x 12.8cm / 2 x 1 x 5in