As low as $74.99
Requires a 12VDC Power Supply. If you are powering from another device (such as a PicoBoo) then you will not require one as you can draw power from that.
The wireless unit is user configurable for momentary, latching, and signal interlock.
These are not waterproof and must be protected from all moisture.
The battery is a “23A” and is replaceable.