We now offer a limited edition variant of Wireless Tag Pro that uses 3D accelerometer instead of 3D compass to sense motion and door open-close (works only on vertical door like garage door and mailbox door). The benefits are
- Immediate notification: The accelerometer measures acceleration 10 times a second resulting in virtually immediate notification.
- Less false alarms: The accelerometer is not susceptible to electro-magnetic interference from nearby appliances turning on/off. This allows you to increase the sensitivity to detect small vibration, not possible with regular 3D compass based motion sensor tags.
- Two types of motion event: "Moved" and "Carried away": The tag can distinguish short vibration that lasts less than a second from longer movement lasting more than 2 seconds.
The battery life of the accelerometer based tag in default setting is similar to that of regular 3D compass based tag in default setting.