Features:  Multifunctional Digital Distance Meter: professional for measuring the distance, area, volume, and the indirect measurement of pythagorean theorem, plus/minus measurement, also has two level bubbles for leveling checking, etc.  Measurement Record Storage Function: up to 99 groups of data can be saved, conveniently for further browsing, also easily to delete the unwanted data.  2.0-inch Large Screen with Backlight: LCD displayed data can be clearly read even at night.  Small Compact Size & Good Quality: easy to use and operate with one hand, the distance meter adopts ABS plastic, durable for everyday usage, with IP54 dustproof and waterproof advanced protection.  Low Power Consumption: just powered by 2pcs 1.5V AAA batteries, with machine auto-off(150s) and backlight auto-off(15s) to save power.  Wide Applications: with wide measuring range and high accuracy, the meter can be widely used in interior decoration and construction field, etc.    Specifications:  Distance Measurement Range: 60m / 80m (Optional)  Material: ABS  Laser Grade: Grade II  Laser Type:  635nm, <1mW  Screen: 2.0 inches  Self Calibration: ± 9mm  Waterproof: IP54  Storage Data: 99 groups  Measuring Distance: 0.05m~60m/80m  Measurement Accuracy: ±(1.5mm+D*5/100000)  Automatic Shutdown: 150 seconds  Automatic Laser Off: 20 seconds  Storage Temperature: -20~60℃  Storage Humidity: 20%~80%RH  Operating Temperature: 0~40℃  Power Supply: 2 * 1.5V AAA battery (NOT included)  Item Size: 112 * 50 * 25mm / 4.41 * 1.97 * 0.98in  Package Weight: 700g / 24.69oz  Package Size: 15 * 7 * 3cm / 5.91 * 2.76 * 1.18in    Packing List:  1 * Distance Meter