Attempt to find a wireless reed switch that supports the following.
* Reports a Door/Window Opening Event via a unique button press event.
* Reports a Door/Window Closing Event via a unique button press event.
* Reports Low Battery Events via a unique button press event.
* Supports using common (Non button style) batteries such as AAA or AA Batteries
433Mhz (1527 Chipset) Wireless Reed Discussion
Sonoff RF Wireless Door / Window Sensor
Model #: DW2-RF
Voltage: 3V (2xAAA 1.5V batteries)
Magnet Installation Gap: < 5mm
Dimensions: 70mm x 31mm x 19mm
Open Event Button Press : 0x01
Close Event Button Press : N/A
Low Battery Button Press : N/A
Transmit Signal Strength : Low
Pros :
* Runs on 2xAAA Batteries
* Back Mounting Plates can be separated to screw the sensor / magnets in to place
Cons :
* Small / Weak Magnet
* Only Supports Door / Window Open Events
* LED alert only works on Door / Window Opening
* LED is small / hard to see
* Mounting plates difficult to dis-engage once the device is mounted
* Window / Door Open Event uses 0x01 button press event, which can be confused with a remote control button press on some receivers.
Model #: DW2-RF
Voltage: 3V (2xAAA 1.5V batteries)
Magnet Installation Gap: < 5mm
Dimensions: 70mm x 31mm x 19mm
Open Event Button Press : 0x01
Close Event Button Press : N/A
Low Battery Button Press : N/A
Transmit Signal Strength : Low
Pros :
* Runs on 2xAAA Batteries
* Back Mounting Plates can be separated to screw the sensor / magnets in to place
Cons :
* Small / Weak Magnet
* Only Supports Door / Window Open Events
* LED alert only works on Door / Window Opening
* LED is small / hard to see
* Mounting plates difficult to dis-engage once the device is mounted
* Window / Door Open Event uses 0x01 button press event, which can be confused with a remote control button press on some receivers.
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Window Detector (Wirless)
Model #: CD-101
Voltage: 3V (2xAAA 1.5V batteries)
Magnet Installation Gap: < 5mm (Reed)
Dimensions:
Open Event Button Press : 0x09
Close Event Button Press : N/A
Low Battery Button Press : N/A
Transmit Signal Strength : Low
Pros :
* Runs on 2xAAA Batteries
* Back Mounting Plates can be separated to screw the sensor / magnets in to place
* LED alert flashes three times for Door / Window Opening
* LED alert flashes twice for Door / Window Closing
Cons :
* Small / Weak Magnet
* Only Transmits / Supports Door / Window Open Events
To Be Determined
* Device may support low battery mode with a slow LED Flash if Battery voltage drops below 2.7V
* Unsure if a transmission is sent under this condition
* Device may be flashable (Need to determine chipset)
Model #: CD-101
Voltage: 3V (2xAAA 1.5V batteries)
Magnet Installation Gap: < 5mm (Reed)
Dimensions:
Open Event Button Press : 0x09
Close Event Button Press : N/A
Low Battery Button Press : N/A
Transmit Signal Strength : Low
Pros :
* Runs on 2xAAA Batteries
* Back Mounting Plates can be separated to screw the sensor / magnets in to place
* LED alert flashes three times for Door / Window Opening
* LED alert flashes twice for Door / Window Closing
Cons :
* Small / Weak Magnet
* Only Transmits / Supports Door / Window Open Events
To Be Determined
* Device may support low battery mode with a slow LED Flash if Battery voltage drops below 2.7V
* Unsure if a transmission is sent under this condition
* Device may be flashable (Need to determine chipset)
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Wireless Door Sensor
Model #: ?????
Voltage: 1.5V (1xAAA 1.5V batteries)
Magnet Installation Gap: 10mm
Dimensions: ????
Open Event Button Press : 0x0A
Close Event Button Press : 0x0E
Low Battery Button Press : ??? (Te Be Tested)
Back Tamper Signal : 0x07
Transmit Signal Strength : Medium
Pros :
* Runs on 1xAAA Battery
* Includes Tamper switch for detecting removal from back mounting plate
* Back Mounting Plates can be separated to screw the sensor / magnets in to place
* LED alert flashes once for Door / Window Opening
* LED alert flashes once for Door / Window Closing
* LED alert flashes once for Tamper Trigger
* Device is flashable
Cons :
* Uses single AAA Battery (So battery life may be short)
To Be Determined
* Device may support low battery mode if Battery voltage drops below 2.7V
Video Link
Model #: ?????
Voltage: 1.5V (1xAAA 1.5V batteries)
Magnet Installation Gap: 10mm
Dimensions: ????
Open Event Button Press : 0x0A
Close Event Button Press : 0x0E
Low Battery Button Press : ??? (Te Be Tested)
Back Tamper Signal : 0x07
Transmit Signal Strength : Medium
Pros :
* Runs on 1xAAA Battery
* Includes Tamper switch for detecting removal from back mounting plate
* Back Mounting Plates can be separated to screw the sensor / magnets in to place
* LED alert flashes once for Door / Window Opening
* LED alert flashes once for Door / Window Closing
* LED alert flashes once for Tamper Trigger
* Device is flashable
Cons :
* Uses single AAA Battery (So battery life may be short)
To Be Determined
* Device may support low battery mode if Battery voltage drops below 2.7V
Video Link