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Description
FireAngel Mains Powered SM-SN-1 4x Multi-Sensor Smoke & HM-SN-1 1x Heat Alarm with 10Yr Battery Lithium Back-upFireAngel Mains Powered Smoke & Heat Alarm Set 4 SM SN 1 & 1 HM SN 1 This FireAngel configuration includes four SM SN 1 multi sensor smoke alarms and one HM SN 1 heat alarm, providing extensive coverage for larger homes and multi room domestic installations. Built for professional use, each alarm is mains powered with a sealed 10 year lithium battery back up and is Smart RF Ready for optional wireless interlinking across the property. Included Alarms
FireAngel Mains Powered Smoke & Heat Alarm Set – 4 × SM-SN-1 & 1 × HM-SN-1
This FireAngel configuration includes four SM-SN-1 multi-sensor smoke alarms and one HM-SN-1 heat alarm, providing extensive coverage for larger homes and multi-room domestic installations. Built for professional use, each alarm is mains powered with a sealed 10-year lithium battery back-up and is Smart RF Ready for optional wireless interlinking across the property.
Included Alarms
- 4 × SM-SN-1 Mains Powered Multi-Sensor Smoke Alarms
- 1 × HM-SN-1 Mains Powered Heat Alarm
SM-SN-1 Multi-Sensor Smoke Alarm Features
- Mains powered with sealed 10-year lithium battery back-up
- Smart RF Ready – add an optional Smart RF module to interlink alarms wirelessly
- Patented Thermoptek multi-sensor technology to help detect both slow-smouldering and fast-flaming fires quickly
- Recognised as an enhanced detection approach within BS 5839-6
- Grade D1 compliant in line with BS 5839-6 recommendations
- Suitable for hallways, landings, living rooms, dining rooms and bedrooms
- Compatible with FireAngel Connected Home Solution when used with a gateway
- Supplied with a dust cover to prevent contamination during installation or building work
- Certified to BS EN 14604:2005 + AC:2008
HM-SN-1 Heat Alarm Features
- Mains powered with sealed 10-year lithium battery back-up
- Smart RF Ready – designed to interlink with other FireAngel Specification alarms
- Class A1 heat detection with activation temperature between 54°C and 65°C
- Advanced Thermistek heat sensing technology with patented radiant heat dish for a faster response to kitchen fires
- Ideal for higher-risk areas such as kitchens, garages and loft spaces
- Compatible with FireAngel Connected Home Solution when used with a gateway
- Supplied with a dust cover to protect the sensor chamber and maximise service life
- Certified to BS 5446-2:2003
Built for Modern Domestic & Social Housing Projects
The FireAngel Specification range is engineered to meet current legislation and deliver consistent performance across domestic installations, including social housing and refurbishment projects. With long-life back-up power, installer-friendly fitting and Smart RF compatibility, this set supports a future-ready, standards-led approach to fire safety.
Please note: Alarms are sold individually.
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Extra deep queen sheet set 6 piece
Color: 18 - Navy Blue, Size: Queen
These sheets fit my 17" mattress perfectly. They dop pop off even after several days of getting in and out of bed. On occasion they do need to be pulled down. They are a great value for the money, I will be buying more in different colors. I love that they are wrinkle free and so soft. They're great if you have other colors to switch the flat or fitted sheet to create a new look.
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Reviewed in the United States on May 12, 2026
★★★★★ 4
Decent sheet set with truly deep pockets. VERY soft and comfy!
Color: 16 - Light Sage Green, Size: California King, Color: 16 - Light Sage Green, Size: California King
The sheets seem to be of decent quality (maybe a little on the thin side). I ordered the light sage green. They seem to have a bit more of a yellowish tinge than I expected but not too bad. I washed them as soon as they arrived and was dissapointed to see several spots on the fitted sheet. I might have blamed something in the wash cycle but they were washed alone in a clean machine and another reviewer also noted what looked like "oil spots" so I am assuming something during the manufacturing process? The sheets truly do have deep pockets! I have a deep mattress plus a topper and the fitted sheet accomodates well. The set came with 4 pillowcases, which I didn't need but some extras never hurt!
I would say examine the sheets before you wash them so you can return them if they have stains.
Update* Having slept on these sheets for a few days, I have to say they are extremely soft and comfortable!
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Reviewed in the United States on March 18, 2026
★★★★★ 5
Microfiber Has Come a Long Way
Color: 22 - Spa Blue, Size: Queen
I have one of those beds where the head and foot of the bed can be raised or lowered as needed, much like a hospital bed. Except in this case, the mattress is soft but supportive and very thick. If you measure the side from the top edge to the bottom edge of the mattress, it measures a bit over 12 inches. That means, if I want the mattress to actually stay in place it needs to have at least a few inches to tuck under, or it just pulls loose. Many sheets that advertise that they are "deep pocket" sheets often barely go around the mattress, and even clips don't help keep the bottom sheet on. It also means more difficulty in the first place to make the bed if I have to do it myself (I have a "hospital bed" for a reason). I did have two sets of sheets that I loved and were just deep enough to stay on fairly well, but I have had them for several years now, and they have started to get a bit thin in spots and the elastic on the fitted sheet is not as taut as before. Sheets are expensive, but I also have a sensitivity to rough and scratchy material, so the texture had to be something I wouldn't find irritating. The last time I bought "microfiber" sheets was probably when "microfiber" was a new thing, and it usually was some kind of knitted, stretchy material like a t-shirt, but had a tendency to pill badly after a few washings. Still, I needed sheets, and it was winter, and those stretchy knitted sheets were soft and warm, so I ordered two sets of the Extra Deep Queen Sheet Set--one in white, and the other in "spa blue". When they arrived, I was very surprised to see that the quality of the fabric actually mimicked very fine cotton sheets. They were brand new as expected, and they didn't smell or anything, but I do wash things like towels or sheets and some clothing before I use them. They weren't really dirty, so I just washed them in a small amount of detergent and cool water. The directions suggest gentle cycle, but I have a "bulky" setting on my washer that seems gentle enough on sheets but helps avoid issues like the load getting off balance in the tub. I dried it on the low, delicate setting with a sheet of fabric softener to cut down on static and because I wanted a nice scent. The sheets came out beautiful, and have since been used and washed again, and they so far, look and feel even more luxurious than before. I especially appreciate that the manufacturer but a label on the fitted sheet to indicate that the side that was to go on the top/bottom of the mattress. The sheets are VERY deep. More than I require, but now they stay on the bed, no matter how far up or down I move it, or how much I toss and turn. I also bought a set of sheets by another brand, but I really should have just paid the few dollars extra for another set of these. If you are used to those 800-count Egyptian Cotton or those fancy silk and bamboo blend sheets, you're probably going to hate these. But if you ever had to settle for sheets from Dollar General or Walmart, this is going to be a definite upgrade. (My favorite sheets from before I think I ordered online from Sears or Kohl's that were some kind of cotton and synthetic blend. ) Overall, for basic soft, comfortable sheets I can recommend these. They seem to be very warm, so I wonder how "breathable" they would be in the summer, but I tend to be very cold all the time anyway. I love these sheets so far. I'm tempted to order one more set if the other brand ends up being too annoying to deal with.
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Reviewed in the United States on January 26, 2026
★★★★★ 5
Perfect set of sheets
Color: 25 - Burgundy, Size: King
This set of sheets were perfect! They are soft and easy to put on our King size bed which has deep fitted corners. The price was great too!! The burgundy looks just like the picture. They are wrinkle resistant- I washed and dried them before using them for the first time and they were wrinkle free. They are not heavy in weight.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Great Sheets
Color: 35 - Lavender, Size: Queen
I really thought the sheets were really nice. I have been looking for good sheets that didn't cost and arm and a leg. The deep pockets are great. I have a mattress that has deep sides, plus I have a topper on that, so the sheets fit great! They are cooling and comfortable to sleep under. Also, I was able to get the color I wanted, lavender. I will be buying another set and do recommend them highly!
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Reviewed in the United States on May 9, 2026