5501H_Manuals 1/17/12 2:32 PM Page 1
One-Sided Laser Detector with Clamp for
Green Beam Lasers
Model No. 40-6760
Instruction Manual
©2012 Johnson Level & Tool 1
5501H_Manuals 1/17/12 2:32 PM Page 2
Detector Usage
Note: A green laser uses a specific detector for the green beam.
Lasers will not perform accurately with red 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,
ow power consumption, good reliability and easy manipulation.
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2. Technical Specifications
Detecting accuracy Fine ±0.08" (±2mm) when range is < 492 ft. (150m)
Turn-off time 6 minutes ±1 minute
Power 3 “AAA” batteries
Sound indicator Slow sounds, rapid 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
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)
2 ©2011 Johnson Level & Tool - Rev. 1
5501H_Manuals 1/17/12 2:32 PM Page 3
3. Components
(a) Structure
1) Horizontal vial
2) Display window
3) Center slot
4) Receiving window
5) Power button
6) Sound area
7) Battery-box
8) Sound button
9) Coarse/Fine detection button
10) Illumination button
11) Bracket mounting hole
12) Battery installation symbol
13) Scale
(b) Display
1. Power indicator
2. Low battery indicator
3. Detection indicator
4. Sound indicator
5. Detected p
osition (grade) indicator
©2012 Johnson Level & Tool 3