Level Measuring Tool 
Functions: * 180 degree auto-rotating display
* Bilateral Magnets 
* Horizontal lasers on both sides
* +0.2° (0°/90°/180%/360°)/+0.3° (other angles) +0.2° (right angle) / Otherwise +0.3°
* Working temperature: 0°C~50°C
* Stock temperature: -20°C~+60°C
* Stock humidity: 20%~80%
* Auto power off function
* Low Battery Indicator 
* Backlight
* Aluminium frame