--- layout: documentation title: SF812 - ZWave --- {% include base.html %} # SF812 Smoke Sensor This describes the Z-Wave device *SF812*, manufactured by *Everspring* with the thing type UID of ```everspring_sf812_00_000```. The device is in the category of *Smoke Detector*, defining Smoke detectors. ![SF812 product image](https://www.cd-jackson.com/zwave_device_uploads/33/33_default.jpg) The SF812 supports routing. This allows the device to communicate using other routing enabled devices as intermediate routers. This device is unable to participate in the routing of data from other devices. The SF812 does not permanently listen for messages sent from the controller - it will periodically wake up automatically to check if the controller has messages to send, but will sleep most of the time to conserve battery life. Refer to the *Wakeup Information* section below for further information. ## Overview The photoelectric Smoke Detector is a Z-WaveTM enabled device which is fully compatible with any Z-WaveTM enabled network. Z-WaveTM enabled devices displaying the Z-WaveTM logo can also be used with it regardless of the manufacturer, and ours can also be used in other manufacturer’s Z-WaveTM enabled networks. Inclusion of this detector on other manufacturer’s Wireless Controller menu allows remote operation of connected modules when the detector is triggered. The detector is designed to sense smoke that comes into the detector chamber. It does not sense gas, heat, or flame. The working principle is when the smoke detector detects a certain density of smoke, the horn of smoke detector will sound and in the meantime, the detector will emit the signals to the associated devices for further execution. It can provide precious time for you and your family to escape before a fire spreads. ### Inclusion Information Pressing link key three times within 1.5 second will enter inclusion mode. The Detector will stay “awake” for 10 minutes to allow time for setting and device status enquiring. ### Exclusion Information Pressing link key three times within 1.5 second will enter exclusion mode. The Detector will stay “awake” for 10 minutes to allow time for setting and device status enquiring. ### Wakeup Information The SF812 does not permanently listen for messages sent from the controller - it will periodically wake up automatically to check if the controller has messages to send, but will sleep most of the time to conserve battery life. The wakeup period can be configured in the user interface - it is advisable not to make this too short as it will impact battery life - a reasonable compromise is 1 hour. The wakeup period does not impact the devices ability to report events or sensor data. The device can be manually woken with a button press on the device as described below - note that triggering a device to send an event is not the same as a wakeup notification, and this will not allow the controller to communicate with the device. ## Channels The following table summarises the channels available for the SF812 -: | Channel | Channel Id | Category | Item Type | |---------|------------|----------|-----------| | Alarm (tamper) | alarm_tamper | | Switch | | Alarm (Low battery) | alarm_battery | | Switch | | Battery Level | battery-level | Battery | Number | | Alarm (smoke) | alarm_smoke | Smoke | Switch | ### Alarm (tamper) Indicates if the tamper alarm is triggered. The ```alarm_tamper``` channel supports the ```Switch``` item. This is a read only channel so will only be updated following state changes from the device. The following state translation is provided for this channel to the ```Switch``` item type -: | Value | Label | |-------|-----------| | OFF | OK | | ON | Alarm | ### Alarm (Low battery) Indicates if the low battery alarm is triggered. The ```alarm_battery``` channel supports the ```Switch``` item. This is a read only channel so will only be updated following state changes from the device. The following state translation is provided for this channel to the ```Switch``` item type -: | Value | Label | |-------|-----------| | OFF | OK | | ON | Alarm | ### Battery Level Represents the battery level as a percentage (0-100%). Bindings for things supporting battery level in a different format (e.g. 4 levels) should convert to a percentage to provide a consistent battery level reading. The ```battery-level``` channel supports the ```Number``` item and is in the ```Battery``` category. ### Alarm (smoke) Indicates if a smoke is triggered. The ```alarm_smoke``` channel supports the ```Switch``` item and is in the ```Smoke``` category. This is a read only channel so will only be updated following state changes from the device. The following state translation is provided for this channel to the ```Switch``` item type -: | Value | Label | |-------|-----------| | OFF | OK | | ON | Alarm | ## Device Configuration The device has no configuration parameters defined. ## Association Groups Association groups allow the device to send unsolicited reports to the controller, or other devices in the network. Using association groups can allow you to eliminate polling, providing instant feedback of a device state change without unnecessary network traffic. The SF812 supports 1 association group. ### Group 1: Alarm notifications Association group 1 supports 5 nodes. ## Technical Information ### Endpoints #### Endpoint 0 | Command Class | Comment | |---------------|---------| | COMMAND_CLASS_NO_OPERATION_V1| | | COMMAND_CLASS_BASIC_V1| | | COMMAND_CLASS_ALARM_V1| | | COMMAND_CLASS_MANUFACTURER_SPECIFIC_V1| | | COMMAND_CLASS_BATTERY_V1| | | COMMAND_CLASS_ASSOCIATION_V1| | | COMMAND_CLASS_VERSION_V1| | | COMMAND_CLASS_SENSOR_ALARM_V1| Linked to BASIC| ### Documentation Links * [Everspring Smoke Detector SF812 Manual](https://www.cd-jackson.com/zwave_device_uploads/33/Everspring-Smokedetector-SF-812.pdf) --- Did you spot an error in the above definition or want to improve the content? You can [contribute to the database here](http://www.cd-jackson.com/index.php/zwave/zwave-device-database/zwave-device-list/devicesummary/33).