How deep does the mounting box need to be please - in mm?

It's surface mounted not inset. Depth around 25mm

Can I use it outdoor?

It is not waterproof, so short answer is a definite “NO” (as indicated by its description “Indoor”; there is no mention of IP certification). For external use, it would have to have an IP rating (such as IPXY, where Y=4, or 5, or 6, e.g., IP44 at a minimum for rain protection, and IP46 for higher water protection – Google it).

Would this work for electric underfloor heating?

Yes it will be fine as long as the underfloor heating load is not above 13 amps. Most underfloor heating is well below this as it needs to be cost effective, but just check.

Can the transparent cover be left off ?

It’s probably OK, but the cover is to stop ingress of dust/ dirt which if left off completely might impair the unit operation

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HBN 24 Hour Indoor Energy Saving Mechanical Immersion Heater Segment Timer Switch with Waterproof Cover, White, 16 Amps

HBN 24 Hour Indoor Energy Saving Mechanical Immersion Heater Segment Timer Switch with Waterproof Cover, White, 16 Amps

Product ID: 60272140

Details

Brand
HBN
Colour
Transparent
Item weight
5.04 Ounces
Material
Plastic
Product dimensions
8.5D x 8.5W x

⏰48 ON/OFF cycles/day

⚡16 Amps heavy-duty load

💧Waterproof transparent cover

€ 42.91

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Description

⏳ Save energy, save time, and never miss a beat with HBN’s smart timer!

POWERFUL RELIABLE - Supports heavy-duty appliances with a robust 16 Amp rating, perfect for immersion heaters and more.
VERSATILE CONTROL HUB - Ideal for lighting, pumps, heating/cooling, security, and advertising systems—one timer to rule them all.
BUILT TO BRAVE THE ELEMENTS - Waterproof cover ensures durability and safety in humid or wet indoor environments.
EFFORTLESS ENERGY EFFICIENCY - Automates your devices to reduce manual switching and slash your electricity bills.
PRECISION SCHEDULING MASTERY - Set up to 48 on/off cycles daily for ultimate control and energy savings.

The HBN 24 Hour Indoor Mechanical Timer Switch offers precise 15-minute interval scheduling with up to 48 on/off settings daily. Featuring a waterproof transparent cover and a sturdy 16 Amp capacity, it’s designed for reliable control of immersion heaters, lighting, pumps, and more. CE certified for safety, this compact and easy-to-use timer automates your appliances to optimize energy consumption and convenience.

Specifications

ASIN	B074FQ37KX
Best Sellers Rank	18,843 in DIY & Tools ( See Top 100 in DIY & Tools ) 34 in Timers
Brand Name	HBN
Colour	Transparent
Country Of Origin	China
Customer Reviews	4.1 4.1 out of 5 stars (984)
Item Dimensions D x W x H	8.5D x 8.5W x 4.8H centimetres
Item Weight	5.04 Ounces
Manufacturer	Ergo I&E CO.,LTD.
Manufacturer Part Number	1649
Material Type	Plastic
Number of Items	1
Number of Packs	1
Number of settings	48
Unit Count	1.0 count

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€ 42.91

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Netherlands.

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Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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