Shop Store Welcome Buzzer Door Sensor Chime Alarm Wireless Home Security Infrared PIR Motion Sensor Detector Bell Entry Alert System, 36 Ringtones & LED Indicators, Long Range

My use case for this item is to be a swim sentry whilst fishing, giving me a heads-up if anyone is approaching at night. I've found the motion activation to be reliable. Various sound settings available on the receiver, no vibration however. Overall would recommend this if it fits your use case.

I bought this with to monitor our porch with, ironically, Amazon deliveries in mind as many delivery drivers don't seem to want to ring our door bell and rap on the glass in the front door instead - which we don't always hear!It was much better quality than expected and has the two main components the wireless chime / alarm / light receiver unit and wireless PIR sensor transmitter included in the box as well as a small plastic stand for the chime and a plastic wall bracket on which to mount the PIR sensor. An optional remote controller is apparently also available.Both units are either battery or Micro USB (not sure why USB 'C' hasn't been used) powered with the chime receiver requring 3 x AA and the PIR transmitter 3 x AAA batteries. Since USB power wasn't convenient for the location I put the two units in, I had to go for the battery option (it's a shame they don't have rechargeable batteries built-in as this would've been ideal).Setup was straight forward with the 5 different modes available which you cycle through with the mode 'M' button located uner the power button) - I went for the Doorbell option as I wanted to monitor our porch for visitors. I tested it out before fitting the PIR Transmitter to it's bracket and mounting in the porch. Bear in mind this CAN'T BE USED OUTDOORS which does limit it's potential uses. Our porch doesn't have a door but it is well sheltered and I have positioned the bracket close to the overhead panelling behind an edge wall. It is very loud on full volume and should be easily heard by most people depending on where it is postioned. It does have it's own little stand so can be moved around your home / premises to suit requirements.Mounting the bracket was here things got a bit tricky. I had to separate the bracket into two parts - the adjustable clamp that holds the transmitter and allows it to pivot and rotate - and the actual fixing bracket that screws to the wall in order to get unhindered access to the two screw holes (screws and raw plugs are supplied).The plastic clamp attaches to the bracket with a ring in the centre onto 4 'jaws' on the bracket. It seemeded quite tight when I separated them but once the bracket was on the wall, trying to get the clamp to reattach securely was an absolute pain! It didn't seem to want to securely re-attach and kept springing off! At one point I foolishly attached the clamp to the transmitter first and then tried to attach the clamp to the bracket and it shot off causing the clamp and transmitter to hit the ground causing the battery cover to come off and batteries to spill out in all directions!!Luckily the transmitter wasn't too badly damaged (apart from a few scuffs) and eventually I got the clamp to hold in place although I'm still not too happy with how secure it is.Overall this is quite a well made piece of kit for the money, but it may be of limited use given that it isn't waterproof and requires batteries or accessible USB prower sources with long enough Micro USB cables (not supplied) to power both the transmitter and receiver. The bracket assembly for the transmitter could also be tougher and be better designed.

I use this to alert me when someone approaches our back porch where we have two doors leading into the house. It helps us know if some person is in our back yard. It was set off once by a coyote that jumped the fence and was looking around but otherwise it is more for intruders.The device works as it is advertised on the product page and offers several sounds to notify you that the beam has been disrupted. It also has a flashing light so it could assist those with hearing loss know that someone is at their door (although the receiver is pretty loud and sure to wake me from sleep).My one hiccup is the lack of rechargeable power in the devices vs disposable batteries. Isn't that how everything is these days?

Just doesn't work.

I like this door chime. It has a 36 ring tones and you can hear it from anywhere in the house when the back door is opened. It a great alert device. Oretty sturdy too.