Simply hang this alarm from any metal door knob, and if movement is detected, a loud alarm will sound to scare away intruders. The portable alarm is great at home or in hotels – no tools or wiring needed. Features variable sensitivity settings and an emergency LED light. Req. 2 "AAA" batteries (sold separately). Plastic. 2"L x 1 1/2"W x 7"H.
yes I would buy again
I use it to keep tabs on the gentleman I take care of. He has Alzheimers and has a tendacy to wander -
Yates Center, Kansas
Category: Home Solutions
I bought 2 of these for a sliding patio door and front door. These are fantastic! I inserted 2 batteries into the one for the back patio door and instead of hanging it on the door handle,where it was obvious, I hung it on the door lock,out of sight to someone from the outside. I did not adjust the volume of the alarm,it is quite loud! The 2nd alarm I hung on the front door hinge instead of the door knob. I just felt the door knob would be more susceptible to wind,etc. So the middle door hinge was perfect place. I highly recommend these. And I am buying more for other areas of the house! This is very good protection and who can argue with the price.We have an alarm system but if power is out,so is the alarm,if the wind blows,the house alarm goes off, so these alarms are fantastic. Wonderful security. I am also planning to buy some for friends that moved to new homes. I also like the flashlight feature! I wish I could use these to carry for personal protection!!!! -
Western New York
Alarm works great!
Door Guard Hanging Door Knob Alarm works great, is very sensitive, to motion. -
i bought 3
I bought this for my sister for lives alone. She is 80 years old and feels more secure with the door monitors. -
door guard alarm
if alarm goes off accidentally it is loud -
I would buy another if I need it. It is lou
Not sure how the unit is suppose to work. When sings? or when it is jarred. -
I bought this and have used this in my door
They just hang on door knob. During an earthquake my house is going to scream. -
Los angeles, ca
doesn't work like stated
I tried it on three different inside doors and it Went Off By Itself in less than 5 minutes on each of them - no vibration or movement on doors. light worked when you turned it on.
price was ok for product but it did not do what I expected, I excepted it to go off when door knob was touched. -