The LL100N is a simple-to-use laser that allows you to take accurate ...
350 m (1150 feet) diameter with detector red diode laser 650 nm. Class 2, <3mW appr. ± 5° appr. 30 sec. LED flashes appr. 5 mm up to 30m (100 ft). 2 x 1.5V ... 
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