HTZSAFE Driveway Alarm System- 1/2Mile Solar Driveway Alarm System- Up to 70FT Wide Sensor Range- Fully Weatherproof Outdoor Motion Sensor&Detector DIY Security Alert System-1 Receiver and 4 Sensors

These work great on our acreage! I have them setup in 4 different locations, each being 50 - 300ft away from the reciever inside the house. They have always stayed charged from the solar panel on top. Seems like the sensitivity is set right as well. Doesn't go off much for windy trees or grass, but has picked up every vehicle, person or animal coming in or our of our yard. Having the ability to set each sensor to a different tone is very helpful, when it goes off in the middle of the night. I sure react different if I hear "Driveway!" At 3am, in comparison to a dog bark setting I chose, for the wildlife trail, behind our property.

This product was very easy to set up and install. It works as advertised. Recommend.

They do not cover 70 ft

This thing does not work all the time and at other times it works well. In the pictures, you can see a sensor mounted on a pole and the bear walked right by it and the sensor never triggered an alarm, for either or the bears. There is another sensor that again, both bears walked by, in the back of the pic.Wind picks up and the forthest sensor goes off every 15 min. or so. Our doge runs in front of it and it goes off. Next day, another bear goes by it and it doesn't go off. Maybe the bears out here are spirit bears, or ghost bears.....We have watched several deer go past one of the sensors and it went off for one out of 3 deer. Sensor that is farther away than these from the base, for our driveway, seems to work fine so maybe it is a defective unit?? Same with a 3rd sensor that is only 50' from base, again, trail cam shows bear going in front of it with no alarm.Will be sending this back.I would recommend getting anything else but this system as its cheap junk and more expensive than some other set ups.

Very good item works great and the best customer support ever. I had a set up issue and they took care of it immediately and free of charge. Get this one.