Johnson Level & Tool Mfg. 40-6550 User Manual
Page 13

Detector Usage
Note: This green laser level uses a specific detector for the green
beam and will not perform accurately with standard detectors.
1. Product Description
A laser detector is an indispensable accessory when using rotary laser
levels. The main function of the detector is to locate the position of
laser signals transmitted by rotary lasers. This detection quickly and
precisely provides the user with the horizontal and vertical references.
This product features a high level of sensitivity, a double-faced display,
low power consumption, good reliability and easy manipulation.
2. Technical Specifications
Detecting range
≥656 ft. (200m)
Detecting accuracy
Fine ±0.08" (±2mm) when range is < 492 ft. (150m)
Coarse ±0.16" (+4mm) when range is < 492 ft. (150m)
Fine ±0.12" (±3mm) when range is > 492 ft. (150m)
Coarse ±0.24" (+6mm) when range is > 492 ft. (150m)
Turn-off time
6 minutes ±1 minute
Power
DC 3.3V or 3 “AAA” batteries
Sound indicator
slow short sounds, rapid short sounds
and a continuous sound
LED indicator
up, mid, down
Dimensions
7.087" x 3.228" x 0.236" (180 x 82 x 26mm)
Weight
0.485 lb. (220g)
Others
Rain and dust resistant
©2005 Johnson Level & Tool
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40-6540_6550 English 6/28/05 9:44 AM Page 13