1)return zero time:5 seconds; 2)precious:+-1nm/10m; 3)the scope of work: use a radius of about 40-50m(receiver)

(1)production name:laser marking instrument;

(2)return zero time:5 seconds;

(3)precision:±1nm/10m;

(4)laser light:4V1H1D;

(5)laser lignt source:a wave length of 635nm under the point of 650nm

laser marking instrument