supplyYHJ-800A laser pointer, mining intrinsic safety surveying instrumentIt is a utility model laser pointer and currently the longest used laser guidance instrument in the industry. It has a long range, high brightness, accurate precision, clear field of view, switch control, and is easy to use.

supplyYHJ-800A laser pointer, mining intrinsic safety surveying instrumentWidely used in environments with flammable, explosive, and combustible gas mixtures such as mines, tunnels, highways, bridges, and railways. Provide construction and excavation projects for mid rise lines and line calibration.

The YHJ-800A intrinsically safe laser pointer for mining should be able to work normally under the following environmental conditions

a、 Environmental temperature -20 ℃~+40 ℃
b、 Relative temperature ≤ 95%
c、 Environmental atmospheric pressure ranging from 80kPa to 110kPa
d、 Mines with methane or coal dust explosion hazards;
e. In an environment without significantly damaging the insulation with gas or steam;
f. Pollution level: Level 3