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FEATURES
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Z-Wave™ alerts from low-voltage trigger signals
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Connect to smoke or CO detectors to monitor activity
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120 V relay to control a security siren or lights
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Installs in the box with the last smoke detector in series
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800 series Z-Wave™ chip for better range and faster control
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Z-Wave™ Long Range for ultra reliable no-mesh communication
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Advanced settings to customize the device’s behavior
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Built-in Z-Wave™ signal repeater for boosted communication
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SmartStart and S2 Authenticate Security for a safer network
SPECIFICATIONS
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Model Number: ZEN55 LR
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Power Input: 100-240 VAC, 50/60 Hz
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Maximum Load: 10 A resistive, PF 0.95 min
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Range: Up to 300 feet line of sight (or up to a mile with LR)
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Operating Temperature: 32-104° F (0-40° C)
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Installation and Use: Indoor only
CAUTION
This is an electrical device - please use caution when installing and operating the DC Signal Sensor. Remote control of appliances may result in unintentional or automated activation of power. Do not use this Z-Wave™ device to control electric heaters or other appliances which produce the risk of fire, burns, or electrical shock when unattended.
To reduce risk of overheating and possible damage to other equipment, do not install this unit to control:
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Receptacles
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Motor-operated appliances
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Fluorescent lighting fixtures
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Any device over 32 V DC power
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Transformer-supplied fixtures.
Use with low-voltage inputs only.
WARNING
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This product should be installed indoors upon completion of any building renovations.
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Prior to installation, the device should be stored in a dry, dustand-mold-proof place.
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Do not install the device in a place with direct sun exposure, high temperature, or humidity.
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Keep away from chemicals, water, and dust.
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Ensure the device is never close to any heat source or open flame to prevent fire.
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Ensure the device is connected to an electric power source that does not exceed the maximum load power.
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No part of the device may be replaced or repaired by the user.
BEFORE YOU INSTALL
This device is intended for installation in accordance with the National Electric Code and local regulations. It is recommended that a licensed electrician perform this installation. This is NOT a security alarm component and the device is NOT part of a life-safety system. Check local regulations before installing.
WIRING: READ IT!
Not sure what you're seeing! Never guess; send us detailed images of your current wiring and we'll be happy to help!
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LOCATE THE DETECTOR: install the DC Signal Sensor in the box with the last smoke detector in series, it will only have 3 wires in the box (usually black, white, and red). While it can be installed in any detector box in the series, the last box will simply have fewer wires and more room to place the sensor.
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POWER OFF: turn the circuit power off in the breaker panel before you start.
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CHECK THE WIRES: mark the interconnect alarm wire (usually red), power line (usually black), and neutral (white). Don’t rely exclusively on your multimeter to identify the wires!
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DISCONNECT THE DETECTOR: remove the wires from the smoke detector and label them accordingly.
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CONNECT THE DC SIGNAL SENSOR: follow all installation steps carefully. Wire the device EXACTLY like in the diagram. Depending on your set-up, you may need a custom diagram to connect a load to the relay part of the DC Signal Sensor. These instructions only cover the basic wiring for smoke and CO alarm monitoring from an existing interconnect detector. Scan the QR code on page 3 to access more wiring diagrams and expanded instructions for different installation types.
ZEN55 WIRING DIAGRAM FOR INTERCONNECTED SMOKE DETECTORS

COMPLETE INSTALLATION
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Secure your Z-Wave™ DC Signal Sensor and the smoke / CO detector back in the box, handling the wires with care.
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Wait with putting it back into the box since you’ll need to scan the QR code on the DC Signal Sensor and/or activate it for inclusion.
Z-WAVE CONTROL
There are 2 methods to add the device to your hub:
SmartStart:
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DO NOT POWER ON THE DEVICE YET.
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Use the hub UI / app to scan the SmartStart code on the device. The SmartStart QR code / security PIN is located on the back of the device.
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Once completed, power the device for SmartStart inclusion, it will be added automatically.
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Do NOT press any buttons on the switch. (Except for SmartThings, you may need to click the main button 3 times). See below for QR codes to hub-specific instructions.

Manual Inclusion:
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Initiate inclusion (pairing) in the app or hub UI.
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Make sure the device is powered and finalize the inclusion at the device: click the Z-Wave button 3 times quickly.
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The LED indicator will blink blue to signal communication and turn green for 2 seconds if inclusion is successful or turn red for 2 seconds if the pairing attempt fails.

How to Add the ZEN55 DC Signal Sensor to Home Assistant
How to Add the ZEN55 DC Signal Sensor to HomeSeer
How to Add the ZEN55 DC Signal Sensor to Hubitat
How to Add the ZEN55 DC Signal Sensor to SmartThings
How to Add the ZEN55 DC Signal Sensor to Z-Box
How to Add the ZEN55 DC Signal Sensor to Your Z-Wave Hub
INSTALLATION TIPS
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Always turn off the power at the breaker before handling the wiring, this is a 120 V high-voltage installation.
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Analog interconnected smoke detectors required (sold separately) - this DC Signal Sensor only translates the signal from your existing alarms to Z-Wave™.
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Use with any standard interconnect smoke alarms.
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When adding the DC Signal Sensor to your hub, you may need to scan the QR code or enter the PIN code located on the back of the device (if your system supports SmartStart). Refer to the Z-Wave™ Control portion of the manual for detailed instructions.
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Test the detector's alarm (follow the instructions for your unit) to see if the status of the Signal Sensor changes in your hub's interface once the alarm goes off. Remember to warn your family members or roommates when testing this!
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You'll need to create an automation in your hub for a notification to be sent to your phone or email once the status on the DC Signal Sensor changes to “alarm detected” so you can immediately know if the detector is triggered.
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Remember that this DC Signal Sensor is NOT designed to be a part of your alarm panel and is NOT a life safety device.
TROUBLESHOOTING
The device won’t add to your system? Try this:
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Initiate EXCLUSION and click the Z-Wave™ button 3 times quickly.
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Factory reset the device.
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Bring the gateway controller (hub) closer to the device, it may be out of range.
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Get troubleshooting tips for your hub at www.support.getzooz.com.
EXCLUSION (REMOVING / UNPAIRING DEVICE)
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Bring your Z-Wave™ hub close to the device if possible
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Put the Z-Wave™ hub into exclusion mode (not sure how to do that? [email protected])
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Click the Z-Wave™ button on the device 3 times quickly (the LED indicator will start blinking green)
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Your hub will confirm exclusion, the LED indicator on the device will turn green for 2 seconds, and the ZEN55 will disappear from your controller's device list.
Can't Add the ZEN55 DC Signal Sensor to Home Assistant
Can't Add the ZEN55 DC Signal Sensor to HomeSeer
Can't Add the ZEN55 DC Signal Sensor to Hubitat
Can't Add the ZEN55 DC Signal Sensor to SmartThings
Can't Add the ZEN55 DC Signal Sensor to Z-Box
Can't Add the ZEN55 DC Signal Sensor to My Z-Wave Hub
FACTORY RESET
If your primary controller is missing or inoperable, you may need to reset the device to factory settings. To reset the ZEN55, click the Z-Wave™ button once and immediately aer, press and hold it down for 15 seconds. The LED indicator will flash during the process and turn red for 3 seconds to confirm successful reset. NOTE: All previously recorded activity and custom settings will be erased from the device’s memory.
ADVANCED SETTINGS
Here are all of the settings available for the latest version of the device: ZEN55 DC Signal Sensor Advanced Settings
How to Access the Advanced Settings for the ZEN55 DC Signal Sensor on Home Assistant
How to Access the Advanced Settings for the ZEN55 DC Signal Sensor on HomeSeer
How to Access the Advanced Settings for the ZEN55 DC Signal Sensor on Hubitat
How to Access the Advanced Settings for the ZEN55 DC Signal Sensor on SmartThings
How to Access the Advanced Settings for the ZEN55 DC Signal Sensor on Z-Box
ASSOCIATION
This DC Signal Sensor supports Group 1 with up to 5 devices for Lifeline Group communication and Groups 2-4 with up to 5 devices. This device will send BASIC REPORT and NOTIFICATION REPORT to Group 1 and BASIC SET command to groups 2, 3, and 4. You can set direct association to have the DC Signal Sensor control another Z-Wave™ device independently of the hub by using Groups 2 - 4. Not every hub exposes direct association settings in the interface so please verify with your hub manufacturer if this functionality is exposed.
S2
This product can be included and operated in any Z-Wave™ network with other Z-Wave™ certified devices from other manufacturers and/or other applications. All non-battery operated nodes within the network will act as repeaters regardless of vendor to increase reliability of the network. This product features the latest Security 2 (S2) framework to remove smart home network hacking risks. This device is equipped with a unique authentication code for trusted wireless communication. This is an ETL certified device. ETL, just like UL, is a Nationally Recognized Testing Laboratory. The ETL mark is proof of product compliance with North American safety standards.
WARRANTY
This product is covered under a 1-year limited warranty and extender 5-year warranty once registered. To read the full warranty policy or file a warranty claim, please go to www.getzooz.com/warranty.
IN NO EVENT SHALL ZOOZ OR ITS SUBSIDIARIES AND AFFILIATES BE LIABLE FOR ANY INDIRECT, INCIDENTAL, PUNITIVE, SPECIAL, OR CONSEQUENTIAL DAMAGES, OR DAMAGES FOR LOSS OF PROFITS, REVENUE, OR USE INCURRED BY CUSTOMER OR ANY THIRD PARTY, WHETHER IN AN ACTION IN CONTRACT, OR OTHERWISE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DA-MAGES. ZOOZ'S LIABILITY AND CUSTOMER'S EXCLUSIVE REMEDY FOR ANY CAUSE OF ACTION ARISING IN CON-NECTION WITH THIS AGREEMENT OR THE SALE OR USE OF THE PRODUCTS, WHETHER BASED ON NEGLIGENCE, STRICT LIABILITY, BREACH OF WARRANTY, BREACH OF AGREEMENT, OR EQUITABLE PRINCIPLES, IS EXPRESSLY LIMITED TO, AT ZOOZ'S OPTION, REPLACEMENT OF, OR REPAYMENT OF THE PURCHASE PRICE FOR THAT PORTION OF PRODUCTS WITH RESPECT TO WHICH DA-MAGES ARE CLAIMED. ALL CLAIMS OF ANY KIND ARISING IN CONNECTION WITH THIS AGREEMENT OR THE SALE OR USE OF PRODUCTS SHALL BE DEEMED WAIVED UNLESS MADE IN WRITING WITHIN THIRTY (30) DAYS FROM ZOOZ'S DELIVERY, OR THE DATE FIXED FOR DELI-VERY IN THE EVENT OF NONDELIVERY.
FCC NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT. STORE INDOORS WHEN NOT IN USE. SUITABLE FOR DRY LOCATIONS ONLY. DO NOT IMMERSE IN WATER. NOT FOR USE WHERE DIRECTLY EXPOSED TO WATER. This device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions:
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This device may not cause harmful interference.
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This device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used according to instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in any given installation. If this equipment causes harmful interference to radio or television reception, the user may try to correct the interference by taking one or more of the following measures:
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Reorient or relocate receiving antenna
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Increase the separation between equipment and receiver
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Connect equipment into a separate outlet or circuit from receiver
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Consult the dealer or an experienced radio/TV technician for additional assistance
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