RCTD-20U Wireless Driveway or Entry Announcer

I ordered this and it came the next day. Very impressive. The unit itself works very well. The only issue I have with it is that it detects blowing snow off the field on windy days and goes off constantly during these times. I have it parallel and about 10 feet away from a busy highway and it does not pick up anything from the highway. Good product, ok price, good vendor. Would purchase this again.

I have used these units for over 20 years (dating back to when when Jansen Electronics made under their brand). My driveway is aprox 550 feet long and we have never had a problem with communications. The 9v battery really does last between 18 - 24 months. I placed additional sensors on my front and back porches. I even have one monitoring the wildlife feeder and the grandkids love that alert. I recently added an additional receiver on my shop and linked to 3 sensors - communications works perfectly even though my shop is a metal Morton Building. Nice to be alerted to a vehicle arriving while I'm working on the shop. I Highly recommend this alarm - it has served me well for many years with ZERO issues.

The Optex works perfectly. We live in the country and the Optex notifies us when someone turns onto our driveway, which is over 400 feet long. The motion detector is installed on the side of a tree, about 12 feet above the ground, at the end of the driveway. The receiver is installed in our office with a wall between the motion detector and the receiver. When my wife is at home alone and the chime sounds, she is able to check out visitors before they come to the door. No more surprise visitors.

I use these as a partial security system to alert me of anything... cars, animals, people etc. passing in its beam. A lithium battery lasts about 12 months. Set and forget, does not loose contact even in an extended power failure. Weather is also not a factor. Finally replaced a set that had been in use for around 10 years! I wish everything was made this well.

My driveway is approximately 100' long. I place the transmitter atop a pillar at one side of the entrance and the receiver is in a front room of the house facing the driveway. Transmission of alerts has so far been perfect. Well, the alarm goes off when something is happening every time I've been there to check on it. Not sure exactly why but a squirrel has adopted this thing. For a minute or two EVERY morning, he/she climbs the pillar and zooms around the top piece 2' square a few times. I think this guy is looking for nuts or something. Anyway, as a testament to the alert power, every time he goes up there I get a bunch of alerts. When the wind is blowing hard (Colorado 20 miles east of the mountains, it gets windy) I get occasional "false" alerts. I put the quotes there because I'm inclined to say that either the wind is rattling the sensor thus altering the image slightly generating false movement (mine is NOT bolted down) or something within the range of the beam is moving and thus causing alerts. Most of the time, like 99% or so, all is quiet unless an intended alert occurs, someone walks up the driveway, a car enters the driveway. My house is not gigantic but it takes a while to get from the basement family room up to the front door. I mainly use this thing not in a security setting but in a heads up something's happening mode. A driver walks up or drives up to my house with a delivery and I can generally beat him or her to the door. Without this I'd not know they were there until they pressed the doorbell and then they'd have a bit of a wait. So ... I like it and feel it was well worth the investment. Oh, one additional thing. this guy is rated down to 15 degrees F. It's worked fine well below that temp after sitting there all night even with an alkaline battery. I'm thinking a Lithium might be more reliable but so far no worries.