* Large LCD;  Backlight for easy reading in darkness place

* Beeper will sound at 0°10°20°30°40°50°60°70°80°90°

* Display always reads upright,no matter which way the unit is turned

* Manual ON/OFF, auto power off

* Degree and slope conversion

* Absolute /relative measurement conversion.

* Measure data holding

* Low battery warning

* Resolution:  0.1°

* Battery Type: one 9V battery( included)

* Working Temperature: 0°C~40°C.   Relative Humidity: 40%~80%.

Electronic Spirit Level