* SA-881EH:   4V4H9D electronic red laser level

* SA-881EG:   4V4H9D electronic green laser level

* 4V4H9D electronic line laser level 

* Laser wavelength: 635nm for red/ 520nm for green 

* Line accuracy: ±1mm/10m 

* Self-leveling range: ±2.5° 

* Working range without detector: 15m for red/ 25m for green 

* Working range with detector: 40-50m 

* Laser class: II 

* IP rating: IP54 

* Working temperature: -5~45℃ 

* Power supply: AA or Rechargeable Li-ion battery