LAISAI LS526 - Nomenclature; Operation Instruction

3. Instrument nomenclature
4. Operation instruction
4.1 Battery mount
a) Mount 3*C alkaline batteries into battery box according to polarity direction, then fix the battery box on the instrument.
b) Fix the rechargeable battery on the instrument
4.2 Charging to rechargeable battery
Central 5/8″screw thread
Side 5/8″ screw thread
Battery cover screw
Remote receiving tube
Battery cover
Laser output window
Hand wheel
Rotary head
Operation keypad