We used to have a magnetic chime on our office door, but the spring kept getting stuck, and we'd go hours without a ding. Found this solution on Amazon, and it's working great. The sensor is contactless, so there's nothing to wear out, just a CR1632 battery to change eventually.
You can have up to a half inch gap, which was handy, because our door moves a bit when closing. We couldn't install the sensors flush against one another.
I found everything other than the default chime option to be annoying. It sounds a bit much like the doorbell, but I'm getting used to it. Could be a little louder, but it's suitable. Need to experiment with different placements for the receiver unit.
UPDATE: This is still going strong a year later with the original battery. However, it's no match for subzero temperatures when installed on an exterior door. We had a mild winter last year, but this one is giving us the Minnesota normal of several days where the high temperatures are below zero. It's no longer working. I'm pretty sure the problem is with the battery. I removed the button battery, warmed it up in my hands (it was REALLY cold), and the ringer worked again for a bit. This is the first problem we've had with it--hopefully just temporary as we weather the coldest part of the year.
Not recommended for Siberia, Nunavut, etc.
| Manufacturer | BITIWEND |
|---|---|
| Part Number | B14-N09-1T1B |
| Item Weight | 5.3 ounces |
| Package Dimensions | 3.78 x 3.58 x 3.03 inches |
| Item model number | B14-N09-1T1B |
| Is Discontinued By Manufacturer | No |
| Size | 1sensor-1receiver |
| Color | Black |
| Voltage | 110 Volts |
| Batteries Included? | Yes |
| Batteries Required? | No |
