1byone Driveway Alarm, Home Security Alert System with 36 Melodies, 1 Plug-in Receiver and 2 Weatherproof PIR Motion Detector, 1000ft Wireless Transmission Range and 24ft PIR Detection Range

It's a great little alarm. It works perfectly in our shed. Rings loudly when the door is opened. It plugs into an outlet so no battries on the receiver.

Works very well for a $25 Driveway alarm. One of my sensors is about 50 yards away from the interior alarm.Sensors use 3 AAA batteries.

Works as expected with many tunes to choose from. Range, however, was found to be less than 300ft with direct line of sight when receiver is placed indoors, which is a typical installation location.

I just bought another set for my other home. These are great and so so easy to install. I installed 1 motion detector on the ceiling outside my front door and I placed the other motion detector just inside my garage. You can mount them with a screw or just set them on a flat surface. The receiver part is plugged into a wall-outlet in my family room. Now, I know when a package/mail is delivered or if someone approaches my front door or comes inside my garage. I would say the motion detectors are weather-resistant but not completely weather proof. I've used mine covered outside for many years with no problems.The volume can be adjusted in many increments to a very loud chime all the way down to a softer chime. There are multiple choices for the type of tone/sound you want to hear. Some are musical tunes. I like the typical ding-dong sound and that's what I use. You would have no problem hearing the receiver anywhere in the house (even on the 2nd floor) if you choose to keep the volume at a higher setting. The motion sensors are battery operated and I get around 6-8 months with regular daily detections. (Tip-use a marker or label and write the date on the batteries when you install them).I have told many people about this set-up. Several have ordered it for themselves and all of them have told me how much they love this.

The range was not what we needed. I think if it was a shorter distance it would work. It was easy to put up, motion detection was OK. Just not the distance we expected it may have been the trees but just didn't work for our need.

For anyone not wanting to pay a monthly subscription to a company or service provider to be able to be protected this unite does it with motion sensors and does not require a subscription to use it so it’s a one time fee plus does not require WiFi or internet access to your house for protection a great deal you get two different motion sensors and a base station that has over 30+ alarms and sounds to be honest I used the first one all the other ones to me sounded like ringtones or a doorbell the owl sound is pretty cool also the screws broke off into tree but no worries I replaced them with thicker ones overall I give it a 10/10 very satisfied customer thank you for you’re great customer service will be back for future purchase

Seems to work good. Lots of options with sounds and volume levels. Only thing I didn’t like was the screws to hang it with are easily to break.

Review all point of qualities on merchandise buy to be used , is so important cause client pay for yours merchancy and deserved goods stuff for whats they pay.