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Heatit  |  SKU: 1444449

Z-Wave Heatit ZM Dimmer 250W - 800 Series

€74,95
Delivery to Austria: cost shown at checkout · 3–7 working days
VAT included · nothing to pay on delivery
In stock

Works with your system

Based on manufacturer compatibility lists, our own tests and shared wireless standards.

See all controllers (8)
  • Aeotec Smart Home Hub (SmartThings) Works by standard
  • Hubitat Elevation (C-8, C-8 Pro) Works by standard
  • Homey Pro Works by standard
  • Home Assistant Works by standard
  • Fibaro Home Center 3 Works by standard
  • Fibaro Home Center 3 Lite Works by standard
  • Nice Yubii Home Pro Works by standard
  • Nice Yubii Home Works by standard

How we check compatibility

Compatibility Guarantee If it doesn't work with your system, return it within 30 days for a refund.

You'll also need

Z-Wave USB adapter for Home Assistant Required

Home Assistant needs a Z-Wave adapter (usually a USB stick) to talk to Z-Wave devices; skip this if your Home Assistant box already has one.

Needed with: Home Assistant

Z-Wave Plus Aeotec Z-Stick 7 Aeotec · €64,95
+ Other options (4)
Aeotec Z-Stick Gen5+ USB Controller Aeotec · €79,95
Z-Wave Sonoff 800 PoE Dongle Max Sonoff · €73,95
Aeotec Z-Stick 10 Pro (Z-Wave & Zigbee) Aeotec · €100,95
Z-Wave Plus Zooz USB Dongle 800 (EU / UK version) Zooz · €56,95

Unlock Mix & Match Savings

Any 5 products = 5% Off

Any 10 products = 10% Off

(Automatically discounted in cart)

Fast Tracked EU Delivery

Tracked delivery in 3–7 working days, with courier and express options at checkout.

VAT and any import duty are paid at checkout, so there's nothing to pay on delivery.

In-stock items ordered before 2:30pm (UK time) ship the same working day.

Smart Home Help When You Need It

Transform your home into a smart one with us, and gain more than just a product.

You'll get set-up help and answers from our smart home team by email and live chat, plus a wealth of guides to help with any technical questions.

Compatibility Guarantee

If Z-Wave Heatit ZM Dimmer 250W - 800 Series doesn't work with your existing system, you can return it within 30 days for a refund under our returns policy.

Request the return from your account and we'll send you an RMA number and instructions.

Summary

A compact Z-Wave 800 in-wall dimmer that fits behind your existing light switch. Dims up to 250 W of LED, incandescent and halogen lighting without flicker, works in 2-wire and 3-wire installations, takes two external switch inputs and reports real-time power use. S2 security, SmartStart and built-in overload and overheat protection.

A Compact In-Wall Dimmer for Z-Wave

Heatit ZM Dimmer turns an ordinary light switch into a smart dimmer. The small module fits in the back box behind your existing switch, so you keep the switches you already have while gaining full control from your Z-Wave controller, schedules and scenes. At just 46 × 21 × 45 mm it leaves plenty of room for wiring, and it works in both 2-wire and 3-wire installations.

Heatit ZM Dimmer and retail box on a shelf

Smooth, Flicker-Free Dimming

The dimmer handles up to 250 W of LED, incandescent and halogen lighting and is designed to work with most low loads without flickering, which is where many dimmers struggle with modern LED lamps. It calibrates its maximum level automatically, and the dimming range can be adjusted to suit the fittings you use, giving a smooth fade from bright to a soft glow.

Heatit ZM Dimmer 250W front angled view

Two Switch Inputs for Extra Control

Connect up to two external switches. Use one to control the lights directly, and the other to trigger scenes or control associated Z-Wave devices elsewhere in the home, so a single wall plate can switch the lights and set a whole-room mood. Associations also let it control other Z-Wave devices directly, without going through your controller.

Heatit ZM Dimmer 250W screw terminals

Real-Time Power Metering

ZM Dimmer measures the power its lights use and reports it to your controller in real time, so you can see what each circuit is costing and spot lights that have been left on. Use the readings in automations, for example to turn lights off when nobody is in the room, or to track lighting energy use in your dashboard.

Heatit ZM Dimmer 250W front view

Built-In Protection

The module protects itself and your wiring against overload, short circuits, over-voltage and overheating, switching off safely if something goes wrong. Its screw terminals accept 0.2 to 2.5 mm² conductors, and firmware can be updated over the air so it keeps improving after installation. It is rated for indoor use between 5°C and 40°C.

Heatit ZM Dimmer 250W dimensions

Z-Wave 800 with S2 Security

Built on the Z-Wave 800 chipset, ZM Dimmer works with certified Z-Wave controllers such as Home Assistant, Hubitat and Homey Pro, and acts as a repeater to strengthen your mesh network. S2 security encrypts every command, and SmartStart makes inclusion quick: scan the QR code and it joins your network as soon as it is powered up.

Heatit ZM Dimmer with orange screw terminals

Payment & Security

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Plus These Added Benefits...

  • Loyalty Points

    Every purchase earns you loyalty points. The more you spend, the more you save. Collect points for future discounts, making each buy a step towards your next saving.

  • Premium Support

    Guides, set-up help and fast answers from the Vesternet team by email and chat.

Frequently Asked Questions

What if it's incompatible with my existing smart home system?

If you try Z-Wave Heatit ZM Dimmer 250W - 800 Series and find it isn't compatible with your system, you can return it within 30 days for a refund.

How do I get set-up help?

Set-up help and answers from our smart home team by email and live chat. Just get in touch with any technical question you have.

Do you offer installation services?

While we don't offer direct installation services, we provide online support through guides, videos, and help from our smart home team by email and live chat. If you need an installer, we can often help connect you. With advancements in smart home tech, most of our products can be self-installed with guidance.

What if I struggle with installing or using after purchase?

Just get in touch. Our smart home team can help you work through set-up and troubleshooting by email and live chat, and our guides and videos cover set-up for many devices. Most problems can be sorted quickly with the right steps.

How quickly will I receive my order?

Orders placed before 2:30pm on a working day are dispatched the same day. In the UK, Standard delivery takes 2 to 4 working days and Express is a next-day service. If your order includes a Vesternet device, choose Standard at checkout and we upgrade the whole order to next-day at no extra cost. For orders outside the UK, delivery options and times are shown at checkout.

Why should I choose to buy from Vesternet over other online stores?

When you buy from Vesternet, you're not just purchasing a product. You get set-up help and answers from our smart home team by email and live chat, plus guides for the products we sell. While there might be cheaper options online, home automation can be complex, and good advice can prevent costly mistakes.

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