If the wireless signal indicator shows no bars:
- Relocate the display unit and/or the remote monitor. The units must be within 330 ft (100 m) of each other.
- Make sure both units are placed at least 3 feet (.9 m) away from electronics that may interfere with the wireless communication (such as TVs, microwaves, computers, etc).
- In the sensor, use standard alkaline batteries (or lithium batteries in sensor when temperature is below -4ºF/-20ºC). Do not use heavy duty or rechargeable batteries.