Connecter sensors signal strength

[Newshound]

Best bets:

• No metal near the sensor, or between the sensor and the bridge
• Move the bridge closer to the sensor
• Add an antenna to the sensor (last resort)

Thinking outside the metal (steel) mailbox

A contact sensor inside my steel mailbox of forty years would not work. Even though the bridge is a direct line of sight at about 35’. I worked up several designs for keeping the contact sensor external while actuating it with a linkage attached to the mailbox door. This was doable but I wanted something simpler. WARRANTY VIOLATION AHEAD! I decided to modify the sensor so it could be mounted inside the mailbox while its antenna would be outside the mailbox. This was done by un-soldering the ori…