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ZEN21 Zooz Z-Wave On / Off Light Switch ZEN21

This describes the Z-Wave device ZEN21, manufactured by Willis Electric Co., Ltd. with the thing type UID of willis_zen21_00_000.

ZEN21 product image

The ZEN21 supports routing. This allows the device to communicate using other routing enabled devices as intermediate routers. This device is also able to participate in the routing of data from other devices.


- Manual or remote on/off control from your mobile device or computer (when included to a Z-Wave gateway controller)
- Z-Wave Plus with improved 500 chip for faster and safer wireless communication
- Works with LED, CFL, and incandescent bulbs
- Based on universal binary switch command class - supported by most Z-Wave controllers
- May be associated and grouped with other Z-Wave devices for advanced home automation
- Simple elegant design with screwless snap-on wall plate included
- Built-in Z-Wave signal repeater for a stronger and more reliable network
- Single pole installation only, neutral wire required

Model Number: ZEN21
Z-Wave Signal Frequency: 908.42 MHz
Power: 120 VAC, 60 Hz
Maximum Loads: 960W Incandescent, 1800W (15A) Resistive, ½ HP Motor
Range: Up to 100 feet line of sight between the Wireless Controller and the closest Z-Wave receiver module
Operating Temperature: 32-104° F (0-40° C)
Installation and Use: Indoor only

Inclusion Information

1. Bring your Z-Wave gateway hub or controller as close to the switch as possible

2. Put your Z-Wave controller in inclusion mode

3. Tap the switch on and off quickly 3 times to finalize the inclusion process

4. A new on/off device should appear on your controller’s device list

Troubleshooting Tips:

If you are unable to include the Z-Wave switch to your controller, please try one of the following:

- Bring the controller closer to your Z-Wave switch or use a hand-held secondary controller for inclusion

- Tap your Z-Wave switch quicker 4 or 5 times once you put the controller in the inclusion mode to ensure the command has gone through

- Put your controller in the EXCLUSION mode and tap the switch quickly 3 times, then try adding it to your network again

Exclusion Information

1. Bring your Z-Wave gateway hub or controller as close to the switch as possible

2. Put your Z-Wave controller in exclusion mode

3. Tap the switch on and off quickly 3 times to complete the exclusion process

4. The device should disappear from your controller’s device list

Please repeat the process following all steps carefully if the first attempt is unsuccessful

Wakeup Information

The switch will be reset to factory defaults only by exclusion using a Z-Wave controller. You may use any certified Z-Wave controller to exclude and reset the switch. This device may not be reset manually when the network’s primary controller is missing or otherwise inoperable. NOTE: All previously recorded activity and custom settings will be erased from the device’s memory.


The following table summarises the channels available for the ZEN21 -:

Channel Channel Id Category Item Type
Switch switch_binary Switch Switch


Switch the power on and off.

The switch_binary channel supports the Switch item and is in the Switch category.

Device Configuration

The device has no configuration parameters configured.

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 ZEN21 supports 1 association group.

Group 1: Status

This device will send SWITCH BINARY REPORT to Group 1 when operated manually. This group supports 5 nodes.

Technical Information


Endpoint 0

Command Class Comment

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