ENGO EREL-16ZB ZigBee Smart Relay 16A Volt-Free Module for Boiler and Pump | Binds to EONE, E40 and E25 thermostats, fits behind a light switch or on DIN rail, works offline once bound
ENGO EREL-16ZB ZigBee Smart Relay 16A Volt-Free Module for Boiler and Pump | Binds to EONE, E40 and E25 thermostats, fits behind a light switch or on DIN rail, works offline once bound
Overall Rating: 4.2 / 5 (average from multiple review sources, as of 18 Oct 2026)
Based on a total of 26,737 customer reviews from independent review platforms.
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Based on a total of 26,737 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Total Price
Only 1 left in stock.
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£37.97
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ENGO EREL-16ZB ZigBee Smart Relay 16A Volt-Free Module for Boiler and Pump
Overall Rating: 3.0 / 5 (average from multiple review sources, as of 19 Oct 2026)
Based on a total of 39,012 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 39,012 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Price
1-3 working days
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£37.97
Delivery from £6.00
Cheapest offer
Works With ENGO Thermostats: binds directly to an ENGO EONE, E40 or E25 ZigBee thermostat to switch a boiler, pump or valve actuator, and keeps working offline once bound Gateway Needed for the App: pairs through an ENGO EGATE-PRO or EGATEZB ZigBee gateway, sold separately, for the free ENGO Smart app, schedules and Alexa or Google Home voice control Small Enough to Hide: the 46 x 46 x 24 mm module fits a flush installation box behind a light switch or socket, or mounts on a DIN rail with the bracket provided Volt-Free Output up to 16A: NO and COM dry contact rated 16(5)A for a boiler switch-live, circulation pump, lighting, fans, gates or electric heaters, powered from 230V AC Fail-Safe Heating Control: if a bound thermostat loses contact the relay switches off after 50 minutes, with a manual button for on and off and an LED for pairing and relay status Extra Input and Smart Rules: the S1 and S2 input takes a wired switch or push button, or an optional ENGO EFS300 sensor for temperature rules, installation by a qualified electrician
£37.97
Only 1 left in stock.
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ENGO EREL-16ZB ZigBee Smart Relay 16A Volt-Free Module for Boiler and Pump | Binds to EONE, E40 and E25 thermostats, fits behind a light switch or on DIN rail, works offline once bound - Details
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We have found 2 prices for ENGO EREL-16ZB ZigBee Smart Relay 16A Volt-Free Module for Boiler and Pump | Binds to EONE, E40 and E25 thermostats, fits behind a light switch or on DIN rail, works offline once bound. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
ENGO EREL-16ZB ZigBee Smart Relay 16A Volt-Free Module for Boiler and Pump | Binds to EONE, E40 and E25 thermostats, fits behind a light switch or on DIN rail, works offline once bound - Price Information
- Cheapest price: £37.97
- The cheapest price is offered by Amazon-marketplace.co.uk. You can order the product there.
- The price range for ENGO EREL-16ZB ZigBee Smart Relay 16A Volt-Free Module for Boiler and Pump | Binds to EONE, E40 and E25 thermostats, fits behind a light switch or on DIN rail, works offline once bound is £37.97 to £37.97, with a total of 2 offers.
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