Product Manual

6. Reception Window - Houses the photocells which detect

the laser signal. Window must be directed toward laser.

7. Beeper Output - Fast audible signal is detector Too High;

solid is On-grade; slow is Too Low.

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

9. Offset Notch - Used for transferring reference marks. Top

of detector is 2" (50 mm) above On-grade.

10. Clamp Slots - Accepts clip-on general purpose clamp.

11. Serial Number / ID Label

12. Battery Door - Sealed battery compartment houses 2 AA or

LR6 batteries. To install batteries, use a coin to open door. Insert

batteries noting plus (+) and minus (-) terminal diagram.

NOTE: Accuracy, Beeper Volume, and LED's On/Off settings

are retained when the unit is turned off.

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Operation