4 Pack Solar Alarm Motion Detector with Sound Light 129dB 6 LEDs Strobe Alarm Motion Sensor Outdoor Security Alarm Siren Waterproof Motion Activated Alarms for Farm, Barn, Villa, Home, Yard

Added these to the perimeter of our garden to keep deer away, so far have not seen a deer since adding these. They are loud enough, I can hear them from inside my house approx. 25 yards away from garden. They are sensitive, picking up tall grass swaying in the wind, I had to remove the grass to stop them from continuously sounding. Directions are lacking but easily figured out with some trials. Good price, I will buy more.5/15/2023 Update... 5 stars to 1 star. They stop working after a few months. Even though fully charged they will no longer trigger, no matter what setting they are on. Replaced twice and same thing happened with replacements.

Nice alarm chases the rodents away

Not even 2 months and 2 of them already not working. Waste of money. Cheap.

dosen't work like it should

The noise is very low some doesn't work.

There are no complete instructions with product. The "light" function does not appear to be real.If all functions described worked it would be a good product but light does not function and there are no operational directions.

Waist of money, worked for a month then after that stop working

Stopped working after a week of use. Would have been great if they kept working.