Product Manual

THUNDER Laser Detector

Model 54 - Exterior

5. Clamp Slots - two dovetail slots accept the rod clamp.

6. Tab Slot - accepts clamp tab and locks clamp in place.

7. Offset Marking Notch - used for transferring reference

marks. The top of the detector is 1.0” (2.5 cm) above the

laser On-grade location.

8. Serial Number Label.

9. Battery Door - compression sealed battery compart-

ment houses 2 x “AA” batteries and ID label. Use a coin

to open the door latch and insert batteries noting the

plus (+) and minus (-) terminal diagram on the housing.

Press the power switch once to turn the detector on.

The beeper will sound and all the symbols on the

LCD will be visible. The power symbol will be

displayed to indicate the unit is on. Pressing and

releasing the power switch again will toggle through

volume selections of off, low, and high. Depressing and

holding the power switch for approximately 2 seconds will

turn the detector off. The unit will automatically shut off if

it is not used for 30 minutes.

The photocells that detect the laser beam are located

behind the reception window. This window must be

directed toward the laser to receive the beam.

When a beam is received, the LCD will visually indicate the

detector’s position relative to the laser beam. A low battery

warning symbol will appear when approximately one hour

of battery life remains.

THUNDER Laser Detector

Model 54 - Operation

LCD Grade Indication

High On-grade Low

Power

Low

Battery

Indicator