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Tested at 288 (144 door open/door close) messages per day for 1 year on one battery
male to female pin type
opening or closing automatic blinds
plug in a USB-C power adapter
Magnetic Contact Switch with Temperature Sensor M Series RF ID:RF4 Tested at 288 (144 doorDescription: The new generation of M Series Sensors provides extended battery life and can be configured for the old RF2 Device ID or our newer RF4 4 character Device ID. This sensor tracks temperature and sends notifications when the contact opens or closes. You can monitor using phones and desktops. Receive alerts and automate tasks. AA batteries last for over a year. For optimal performance, use non rechargeable batteries. The powerful transmitter
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