Good product. Using one on the upper level and one in the basement of my single family house. No issues with range or anything. Good part is, main units plug into electric outlets - only the door switch needs a battery.
^ USB phone charger with 3 silicon diodes in series connected to the battery contacts will power any of the otherwise 2 x cell battery powered receivers... takes a couple minutes to solder and wouldn't make sense at this price, but almost everyone has leftover phone chargers so can be handy for other ~ 3V battery powered devices.
Comments & Reviews (2)
Thank you!