Products / Surveying Instrument / OP-Laser Plummet
Model No. GPI-ZL22
Accuracy (Upward laser)  1 / 45000
Accuracy (Downward laser)  1 / 2000
Plate level sensitivity  30" / 2mm 
Telescope Image  Erect 
Magnification  25 X 
Field of view  1° 50' 
Objective lens  36mm 
Focus  0.8m 
Laser  (upward) Wave length  635nm 
Laser class  Class 2(IEC60825-1:2001-11)
Laser Range  Day≧I00m Night≧250m(visible from eyepiece) 
Output power  5mw
Beam spot diameter ≦3mm / 50M
Upward Error between telescope sight axis and vertical axis ≦5"
Error between laser axis and sight axis ≦5"
Laser Plummet Wave length 635nm
Laser class Class 2(IEC 60825-1 :2001-11)
Output power ≥0.1mw, Adjustable
Accuracy ± lmm / 1.5M
Battery 2pcs alkaline batteries or rechargeable battery 
Operation temperature  -10°C ~ +45°C
Weight 2.9kg