---
product_id: 457380530
title: "Zooz 700 Series Z-Wave Long Range Smart Relay ZEN51 | Installs Behind Wall Switch Or at The Light | Compatible with SmartThings, Hubitat, and Home Assistant | Z-Wave Hub Required (Sold Separately)"
brand: "zooz"
price: "€ 74.64"
currency: EUR
in_stock: true
reviews_count: 8
category: "Zooz"
url: https://www.desertcart.gr/products/457380530-zooz-700-series-z-wave-long-range-smart-relay-zen51
store_origin: GR
region: Greece
---

# Supports up to 960W Incandescent 1300 ft Z-Wave Long Range Compact 1.5"x1.4"x0.7" fits tight boxes Zooz 700 Series Z-Wave Long Range Smart Relay ZEN51 | Installs Behind Wall Switch Or at The Light | Compatible with SmartThings, Hubitat, and Home Assistant | Z-Wave Hub Required (Sold Separately)

**Brand:** zooz
**Price:** € 74.64
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your smart home with Zooz — where legacy meets next-gen automation!

## Quick Answers

- **What is this?** Zooz 700 Series Z-Wave Long Range Smart Relay ZEN51 | Installs Behind Wall Switch Or at The Light | Compatible with SmartThings, Hubitat, and Home Assistant | Z-Wave Hub Required (Sold Separately) by zooz
- **How much does it cost?** € 74.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/457380530-zooz-700-series-z-wave-long-range-smart-relay-zen51)

## Best For

- zooz enthusiasts

## Why This Product

- Trusted zooz brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Bulb Mode Enabled:** Keep your smart bulbs powered while retaining traditional switch control.
- • **Plug & Play Installation:** Pigtail wiring and ultra-compact design make upgrades hassle-free in crowded switch boxes.
- • **Robust Hub Compatibility:** Works flawlessly with SmartThings, Hubitat, Home Assistant & more for ultimate smart home synergy.
- • **Seamless 3-Way Automation:** Effortlessly control multi-switch setups without neutral wires at every box.
- • **Industry-Leading Security & Range:** Z-Wave 700 Series with SmartStart & S2 encryption ensures fast, secure, and reliable connectivity.

## Overview

The Zooz 700 Series Z-Wave Long Range Smart Relay ZEN51 is a compact, ETL-certified smart relay designed for 120V on/off control behind existing wall switches or at light fixtures. It supports up to 960W incandescent or 150W LED loads and enables advanced 3-way switch automation without neutral wires at every switch. Featuring Z-Wave Long Range technology with up to 1300 feet range, SmartStart pairing, and S2 security, it integrates seamlessly with popular hubs like SmartThings, Hubitat, and Home Assistant. Ideal for professionals upgrading smart homes, it offers reliable, secure, and flexible automation backed by US-based support and a 5-year warranty.

## Description

NOTE: Check Wattage first: DON'T exceed 150 W of LEDs or 960 W incandescent. Use with small fans under 1/2 hp only. NEUTRAL WIRE REQUIRED.SPECIFICATIONS:Model Number: ZEN51Z-Wave Region: US/CA/MXPower: 110-120 V AC, 60 Hz960 W incandescent, 150 W LED bulbs, 10 A resistive, 1/2 HP fan motors (don't use with tube lights or switched receptacles)Z-Wave Range: Up to 300 feet line of sight (1300 feet with Z-Wave Long Range enabled)Dimensions: 1.5" tall, 1.4" wide, 0.7" deepOperating Temperature: 32-104° F (0-40° C)Installation and Use: Indoor only Will it work with my smart speakerSmart speakers are not Z-Wave controllers so you will need a compatible Z-Wave hub to control this device with voice commands.Smart speaker compatible Z-Wave hubs include:Z-Box Hubcompatible with SmartThingsHome Assistant (Z-Wave JS)HomeSeerHubitat

Review: It's great for hubitat - I’ve purchased multiple Zooz 700 Series Z-Wave Long Range Double Relay ZEN52 units for my Hubitat setup over the years, and they’re a cornerstone of my smart home automation. This relay integrates seamlessly with Hubitat, allowing independent control of two 120V loads, making it ideal for automating dual gang box switches or separating fan motor and light control in a single fixture. The installation is a breeze with pigtail wires, fitting easily into tight boxes. The 700 series Z-Wave chip and Long Range support deliver fast, reliable communication with Hubitat, ensuring no lag in my automation routines. I’ve used it for controlling fans, lights, towel warmers and other non-dimmable loads, and it performs flawlessly. For Hubitat users seeking versatile, reliable automation, I highly recommend the ZEN52 for its performance and ease of use!
Review: Great safety monitoring addition to smart home - Installed easily with my smoke detector, connected to home assistant via a Z wave stick quickly and easily. There are no default alarms or alerts via home assistant but it was quick and easy for me to create a rule that if the dc detector indicates smoke or fire it will sent an alert to my phone. Tested via the test button on the smoke detector and it sent the alarm every time!

## Features

- SMART RELAY FOR ON/OFF CONTROL: Install this relay to add Z-Wave to the existing wall switch and keep your favorite switch style and color. The relay output is dry contact for your unique applications outside of lighting but note the input (switch) requires 120 V which makes it perfect for 120 V signal monitoring on sump pumps or motion lights. For a dry contact input device, look up ZEN16.
- 3-WAY COMPATIBLE: Unlike many other smart relays, you can use this device to automate 3-way set-ups as well. Even if you don't have neutral available at any of the switch boxes, you can always install this relay at the light fixture where you'll have access to power and neutral. Always follow the wiring diagrams carefully and make any programming changes if needed when installing this relay.
- EASY INSTALLATION: Pigtail wires for convenient connections. Connect to mechanical on/off or momentary switches only (NO dimmers or electronic / smart switches). The relay is small enough to fit in the most crowded box, just 1.5" x 1.4" and 0.7" deep. NEUTRAL WIRE REQUIRED (check before buying). The device is ETL certified and conforms with North American safety standards.
- SMART BULB MODE AND MORE: Bring back the switch function to your old switches even when using smart bulbs. The smart bulb mode allows you to control smart bulbs via Z-Wave without cutting power to them when off. Enjoy the new 700 series Z-Wave with powerful features like Z-Wave Long Range, SmartStart, and S2 authenticated security. Your hub or home automation softwarre needs to support this functionality as well.
- HUB COMPATIBILITY: This is an advanced Z-Wave device and it requires an updated Z-Wave hub to display correctly. All Zooz devices work best with the Z-Box Hub. It was tested to work well with Hubitat, Home Assistant (Z-Wave JS), HomeSeer and is compatible with SmartThings. This product is backed by US based support from Zooz, 7 days a week and a 5-year warranty once registered.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B5VR87JX |
| Best Sellers Rank | #45,773 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #381 in Electrical Light Switches |
| Brand | ZOOZ |
| Brand Name | ZOOZ |
| Coil Voltage | 120 Volts |
| Connector Type | Screw |
| Contact Current Rating | 10 Amps |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Current Rating | 1.5 Amps |
| Customer Reviews | 4.4 out of 5 stars 294 Reviews |
| Included Components | Smart Relay, User Manual |
| Lower Temperature Rating | 32 Degrees Fahrenheit |
| Manufacturer | Zooz |
| Maximum Switching Current | 10 Amps |
| Maximum Switching Voltage | 120 Volts |
| Mounting Type | Flush Mount |
| Operation Mode | Automatic |
| Specification Met | FCC |
| UPC | 853478006513 |
| Wattage | 960 watts |

## Product Details

- **Connector Type:** Screw
- **Contact Material:** Copper
- **Contact Type:** Normally Open
- **Current Rating:** 1.5 Amps
- **Mounting Type:** Flush Mount

## Images

![Zooz 700 Series Z-Wave Long Range Smart Relay ZEN51 | Installs Behind Wall Switch Or at The Light | Compatible with SmartThings, Hubitat, and Home Assistant | Z-Wave Hub Required (Sold Separately) - Image 1](https://m.media-amazon.com/images/I/51KeUTH42rL.jpg)
![Zooz 700 Series Z-Wave Long Range Smart Relay ZEN51 | Installs Behind Wall Switch Or at The Light | Compatible with SmartThings, Hubitat, and Home Assistant | Z-Wave Hub Required (Sold Separately) - Image 2](https://m.media-amazon.com/images/I/51ZeFUGTOTL.jpg)
![Zooz 700 Series Z-Wave Long Range Smart Relay ZEN51 | Installs Behind Wall Switch Or at The Light | Compatible with SmartThings, Hubitat, and Home Assistant | Z-Wave Hub Required (Sold Separately) - Image 3](https://m.media-amazon.com/images/I/5155O13mB-L.jpg)
![Zooz 700 Series Z-Wave Long Range Smart Relay ZEN51 | Installs Behind Wall Switch Or at The Light | Compatible with SmartThings, Hubitat, and Home Assistant | Z-Wave Hub Required (Sold Separately) - Image 4](https://m.media-amazon.com/images/I/51klosFfElL.jpg)
![Zooz 700 Series Z-Wave Long Range Smart Relay ZEN51 | Installs Behind Wall Switch Or at The Light | Compatible with SmartThings, Hubitat, and Home Assistant | Z-Wave Hub Required (Sold Separately) - Image 5](https://m.media-amazon.com/images/I/51Lr6Kv2vjL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Can this be used without physical switches and only for control with via z-wave?**
A: Yes, the device doesn't need a physical input (switch) and you can control is using Z-Wave commands only. Remember to check your local safety regulations to make sure an emergency physical wall control isn't required for the load you'd like to control with the Zooz device.

**Q: I need similar that can run from 12-18vdc power, so I can relay some aux devices that also run on 12-18vdc. Do they make it?**
A: I haven't found 1 for 18vdc
So I used it to turn a 110v ac in 18vdc out powersupply on and off
I know it's involved but it what I did

**Q: Will these work on GFCI circuits? I have 2 outdoor lights that are on ground fault circuits and all of the zwave switches I have tried trip the gfci.**
A: Yes, it can be installed on a circuit with a GFCI.  I have this installed on an exterior circuit with GFCI and it works just fine.

**Q: Does it click when on/off? If yes, how loud?**
A: Any relay will make a sound when clicked so you will hear it when it's switched on and off. It's not too loud, just like your average 15A relay.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's great for hubitat
*by G***S on September 18, 2025*

I’ve purchased multiple Zooz 700 Series Z-Wave Long Range Double Relay ZEN52 units for my Hubitat setup over the years, and they’re a cornerstone of my smart home automation. This relay integrates seamlessly with Hubitat, allowing independent control of two 120V loads, making it ideal for automating dual gang box switches or separating fan motor and light control in a single fixture. The installation is a breeze with pigtail wires, fitting easily into tight boxes. The 700 series Z-Wave chip and Long Range support deliver fast, reliable communication with Hubitat, ensuring no lag in my automation routines. I’ve used it for controlling fans, lights, towel warmers and other non-dimmable loads, and it performs flawlessly. For Hubitat users seeking versatile, reliable automation, I highly recommend the ZEN52 for its performance and ease of use!

### ⭐⭐⭐⭐⭐ Great safety monitoring addition to smart home
*by D***D on May 24, 2025*

Installed easily with my smoke detector, connected to home assistant via a Z wave stick quickly and easily. There are no default alarms or alerts via home assistant but it was quick and easy for me to create a rule that if the dc detector indicates smoke or fire it will sent an alert to my phone. Tested via the test button on the smoke detector and it sent the alarm every time!

### ⭐⭐⭐⭐⭐ Works great with Z-Wave and Home Assistant
*by P***Y on May 3, 2025*

It took me a while to figure out how to pair it with my Home Assistant setup, but I went through their troubleshooting page and got it on the second try. The final solution to pairing it was to follow their instructions on their website - not sure if I can link it in this review, but I used DuckDuckGo to search for Zooz 800 ZEN55 "home assistant" and followed the instructions on that page. The final solution was to click the buttons very quickly - I think I was too slow before - and I did a reset (I think) with five quick clicks, then re-added with 3 quick clicks. The whole thing easily fit back into the smoke detector enclosure, and I tested it and it worked well. It's nice to have the piece of mind of knowing I'll get an alert on my phone if there is an issue, but without the privacy implications of using it with Google or another company.

## Frequently Bought Together

- Zooz 700 Series Z-Wave Long Range Smart Relay ZEN51 | Installs Behind Wall Switch Or at The Light | Compatible with SmartThings, Hubitat, and Home Assistant | Z-Wave Hub Required (Sold Separately)
- Zooz 800 Series Z-Wave Long Range S2 On Off Switch ZEN76 800LR, White | Simple Direct 3-Way and 4-Way Solution (Works with Regular Switches, No Aux Switch Needed) | Z-Wave Hub Required
- Zooz 800 Series Z-Wave Long Range S2 USB Stick ZST39 LR, Great for DIY Smart Home (Use with Home Assistant or HomeSeer Software)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-21*