S40 Laser Distance Meter 40M Handheld Rangefinder ±2mm High Precision Digital Mini Distance Measuring Meter Indoor Rechargeable Electronic Space Measurement Device for Length Area Volume with Aluminium alloy Shell, 0.1s Measuring Speed ( Item#: E24862 )

Features:
Millimeter Precision - equipped with high-speed algorithm chip and upgraded lens, this meter delivers stable and precise measurement with accuracy of ±2mm.
Capability - 0.1s quick measurement of distance, area, volume, indirect measurement through Pythagorean theorem.
Practical Functions - unit switchable among meter (m), inches (in), feet (ft); auto-shut off in 60s. Support easy storage of 50 groups of data.
Stay Accurate - with self-calibration which allows users to calibrate the meter whenever necessary, with adjusting range from -7 to 7mm. 
Rechargeable Battery - built-in rechargeable battery has a large capacity of 500mAh and can be easily charged via Type-C USB cable.
Mini Size - it's small enough to fit in any jacket or trouser pocket, widely used in interior decoration, indoor design, construction field.

Specifications:
Model: S40
Measuring Accuracy:+/-2mm
Unit: M/in/ft
Measuring Range (no reflecting plate): 0.05-40m
Measuring Time: 0.1-3s
Laser Grade: Grade II
Laser Type: 625nm < 1mw
Dustproof And Waterproof Grade: IP54
Storage Data: 50 sets
Electronic Level: 0-90° (±1° error)
Automatic Laser Shutdown: 25s
Automatic Shutdown: 60s
Characters Display: Reverse display LED
Measurement reference switching: √
Data clearing: √
Electric quantity display: √
Signal intensity indicator: √
Continuous measurement (max. and min.): √
Add, subtract (distance, area and volume): √
Area, volume and Pythagorean theorem measurement functions: √
Operating temperature range: 0℃-40℃
Storage temperature range: 25℃-60℃
Battery: Built-in 3.7V 500mAh lithium battery
Power Supply: Type-C charging cable
Material: aluminium alloy
Item Size: 110 * 32 * 18 mm / 4.33 * 1.26 * 0.71 inch
Item Weight: 60g / 2.12oz
Package Size: 14.5 * 7.3 * 4 cm / 5.71 * 2.87 * 0.16 inch
Package Weight: 120g / 4.23oz

Package List:
1 * Laser Distance Meter
1 * Type-C Charging Cable
1 * Lanyard
1 * User Manual (English)