Get Alerts When Someone Enters Your Business. The LRA-DCTX is a Wireless, Long Range Door Sensor ONLY That Transmits up to 1,000 Ft. Great for Businesses & Large Properties

oK you've just purchased your LRA long-range entrance alert we have a two-piece sensor and the receiver I've already installed the three volt battery inside my sensor and three si sized batteries in my receiver we are going to program it to do so you're going to hold the zone selector button on the left down for three seconds until zone one lights up then on the right you have your sound selector button there's eighteen sounds to choose from but we're going to just use the first one once you've picked your sound just move your sensor apart and it generates that one little click sound and then you're going to put it back together and then move through the zones again with your zone button and still none of them light up and move your sensor again and your entrance alert has been programmed