Features：
1、Designed with finest material and Green LD diode；
2、Electronic leveling technique ensures high precision；
3、Suitable for all indoor and majority of outdoor applications；
4、Can be used with laser detector；
5、Attached metal rotating base can be used for precise adjustment。
Specification：
Model:3D-1S、3D-2F、4D
Laser plane:vertical plane×2,horizontal plane×2
Leveling accuracy:±1.5mm/10m
Self-leveling rang:±4°
Leveling time:＜3S
Nearest to wall distance: 8mm
Correction system:Self levelling by sensor
Working range:20m,60m with detector
Dust&water proof:IP54
Operation temperature:-10℃～+45℃
Operation time:≥5h(all lines turn on)
Power:Li-ion 18650 battery*2 or AA*4(1.5V*4)