---
product_id: 679466701
title: "ZEN51 Z-Wave 700 Series Long Range Smart Relay | Installs Behind Wall or Light Switch | Compatible with SmartThings, Hubitat and Home Assistant"
brand: "zooz"
price: "4242506₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Zooz"
url: https://www.desertcart.vn/products/679466701-zen51-z-wave-700-series-long-range-smart-relay-installs
store_origin: VN
region: Vietnam
---

# 120-230V Multi-Load Control Z-Wave 700 Long Range S2 Authenticated Security ZEN51 Z-Wave 700 Series Long Range Smart Relay | Installs Behind Wall or Light Switch | Compatible with SmartThings, Hubitat and Home Assistant

**Brand:** zooz
**Price:** 4242506₫
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your smart home with invisible genius.

## Quick Answers

- **What is this?** ZEN51 Z-Wave 700 Series Long Range Smart Relay | Installs Behind Wall or Light Switch | Compatible with SmartThings, Hubitat and Home Assistant by zooz
- **How much does it cost?** 4242506₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/679466701-zen51-z-wave-700-series-long-range-smart-relay-installs)

## 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 Magic:** Control smart bulbs without cutting power—no more accidental switch-offs.
- • **Invisible Installation:** Installs discreetly behind your existing wall switch—keep your style, upgrade your tech.
- • **Multi-Tap Stage Control:** Unlock 7 customizable triggers to extend your switch’s functionality like a pro.
- • **Next-Gen Z-Wave 700 Chip:** Experience stronger mesh network coverage and ultra-reliable connectivity.
- • **Seamless Smart Integration:** Compatible with SmartThings, Hubitat & Home Assistant for effortless home automation.

## Overview

The Zooz ZEN51 is a compact, behind-the-switch Z-Wave 700 Series smart relay designed for 120-230V lighting and load control. It enhances your home automation with long-range connectivity, advanced security, and smart bulb compatibility, all while preserving your existing switch aesthetics. Compatible with major hubs like SmartThings, Hubitat, and Home Assistant, it offers multi-tap triggers and easy installation with included pigtail wires.

## Description

PRODUCT HIGHLIGHTS Z-Wave on/off control for 120-230V applications and dry contacts: ideal for lighting control or load monitoring 120-230V (sump pumps, motion lights) Z-Wave 700 series chip: greater coverage for a stronger mesh network SmartStart and S2 authenticated security for a smart home truly protected Installs Behind the existing wall switch or on the fixture (if neutral is not available in the switch box) Pigtail wires included for hassle-free installation Perfect if you want to keep your favorite wall switch style or color but add Z-Wave Smart Bulb Mode: Disable manual and/or Z-Wave control to control your smart bulbs via Z-Wave only without turning off the power to them. Stage control: choose from 7 multi-tap triggers to extend the functionality of the connected switch (available on hubs that support multi-tap triggers*) Multi-color LED indicator for easier pairing and diagnosis Compatible with quality LED and incandescent bulbs (do not connect to ballast tubes, switched outlets or fans over 3A/5 years; NOTE: FEIT bulbs are only Not recommended). Built-in signal repeater: helps keep your network fast and reliable 5-year warranty and lifetime technical support NOTE: Z-Wave gateway controller required - sold separately. *Your smart hub/controller must support advanced settings and center scene programming for you to enjoy this feature.

Review: Works well with Home Assistant and easy to wire up. Will be buying more!
Review: I purchased two of these to install directly in my 3d printers so that I could control power on/off through Home Assitant. Worked perfectly, setup with HA was straightforward and worked with the quick start code.

## Features

- HUB COMPATIBILITY: This is an advanced Z-Wave device and requires an updated Z-Wave hub to display correctly. All Zooz devices work best with the Z-Box Hub. It has been tested to work properly with Hubitat, Home Assistant (Z-Wave JS), HomeSeer and is compatible with SmartThings.
- SMART BULB MODE AND MORE: Restore the switch function on your old switches, even when using smart bulbs. Smart bulb mode allows you to control smart bulbs via Z-Wave without cutting them off when switched off. Enjoy the new Z-Wave 700 series with powerful features like Z-Wave Long Range, SmartStart and S2 authenticated security. Your hub or home automation software must also support this feature.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B5VR87JX |
| Item model number | ZEN51 |
| Manufacturer | Zooz |
| Product Dimensions | 3.81 x 3.56 x 1.78 cm; 50 g |

## Product Details

- **Brand:** ZOOZ
- **Connector type:** Screw
- **Contact material:** Silver
- **Contact type:** Normally Open
- **Mounting type:** Wall Mount

## Images

![ZEN51 Z-Wave 700 Series Long Range Smart Relay | Installs Behind Wall or Light Switch | Compatible with SmartThings, Hubitat and Home Assistant - Image 1](https://m.media-amazon.com/images/I/51KeUTH42rL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Review
*by R***R on 16 October 2025*

Works well with Home Assistant and easy to wire up. Will be buying more!

### ⭐⭐⭐⭐⭐ Review
*by J***E on 29 March 2024*

I purchased two of these to install directly in my 3d printers so that I could control power on/off through Home Assitant. Worked perfectly, setup with HA was straightforward and worked with the quick start code.

### ⭐⭐⭐⭐⭐ Review
*by B***D on 20 December 2022*

I had the ubiquitous Linear FS20Z-1 Z-Wave contact fixture module installed in my front wall for many years to automate the lights on top of the wall. After about ten years the module went kaput and seems to no longer be available. The Zooz 700 Series Z-Wave Plus Smart Relay does everything the FS20Z-1 did in a much smaller package, making it far easier to embed in the outlet box without working too hard to fit in all the wires. While this module is not rated for outdoor use the box is weather-insulated, and I further wrapped the Smart Relay in a sandwich bag sealed with duct tape, so I'm quite confident no moisture will enter. Temperatures are mild enough here in Silicon Valley that it should also almost always be within the operating range (32F - 104F). It paired easily with my SmartThings hub (V2) and works as expected. Note that I'm not using the switch contact, I'm only controlling it via Z-Wave, so I can't comment on that feature, but I have no reason to think it wouldn't work as expected.

## 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 Vietnam*
*Store origin: VN*
*Last updated: 2026-03-02*