MengshenMotion Sensor Alarm, Wireless Doorbell Alert for Front Door Door Entry Driveway Mailbox Home Shop Visitors with 1 Sensor and 1 Receiver

Perfectly working, I hope It'll last a year or two. Now it's working perfectly fine.

One of the best tool I ever purchased . I am removing 1 star because it detects also my dog, and giving false alarms.😂

Product received as described

Funciona muy bien, a buena distancia, diferentes todos y se siente un producto sólido

First time in a long time I took a chance on ordering something not knowing if it would do what I need it to. This product has been fantastic. Works perfectly and good battery life. This is used in a harsh industrial environment. Overall the sensor is about 50 ft away but due to the building construction, the opportunity for interference is high. Usually "wireless" devices have a 10% chance of working but this works flawlessly. It is used as an entry alert. Now we know someone is coming long before we see them!

I use this in a retail/print shop. Sometimes we need to be in the back either keeping printers working or cutting equipment going. When you’re working alone it’s impossible to hear the front door open. We have a sensor at the front door and the receiver on the wall in the back. When a customer comes in the receiver flashes colours for about 5-10 seconds. Works great. Distance between sensor and receiver is about 40 feet with a wall in between. I haven’t had to replace either batteries yet.

This works great as it does not cause false alarms like other sensors do. It also does not get false interference like other 433.92Mhz driveway alarms do like the Kerui DW9.Is has great range by itself. One I have in the mailbox made of metal and it won't work as is OEM but adding a small coil wire outside the mailbox from the sensors antenna makes it work perfectly.

Very easy to install and use. I use in my shop.Customers are happy when entering with a welcome sound.Very good quality. A++++++++++.Delivered well before expected.