Elenco Ranger R/C Metal Detector - Manual (Page 3)

Antenna
Battery Safety Guidelines
2 5
Assembly:
For Transmitter:
Sensitivity Calibration: Red LED
- To prevent battery leakage, be sure to insert batteries correctly.
- Batteries should be replaced by adult.
- Never dispose of batteries in fire as this may cause them to explode.
- Do not mix old and new batteries (replace all batteries at the same time).
- Do not mix alkaline, standard (carbon-zinc), or rechargeable
(nickel-cadmium) batteries (or equivalent). Only use batteries of the
same or equivalent type as recommended.
- Nonrechargeable batteries are not to be recharged.
- Always remove exhausted or dead batteries from product. Remove
batteries from product when it will not be used for a long time.
Otherwise the batteries may leak and cause damage.
- Do not short-circuit supply terminals.
- Make sure battery compartment is secure.
- Do not immerse battery-operated toys. Wipe clean only.
1) Adjust the fine-tune knob counterclockwise, until long beep
tone is heard and red LED is on.
2) Then turn the knob backward slowly until the beep tone is JUST
OFF and red LED is off. At this moment, the Metal Detector is
at its most sensitive.