OPEN 7 DAYS A WEEK 0800 612 6537 Lines open today 8am - 8pm

Replacement for FireAngel SO-601 9V Optical Smoke Alarm

4.9 out of 5 stars
£17.75 inc VAT
£14.79 ex VAT
Product Overview

The FireAngel SO-601 optical smoke alarm with toast proof sensing technology, operated by a 9V alkaline battery is less prone to sounding falsely due to cooking fumes. As the SO-601 is now discontinued, Firehawk have manufactured an adaptor plate designed to fit your existing baseplate. The adaptor will accommodate the Firehawk FHB10 optical smoke alarm with no need to drill new holes on your ceiling.

The Firehawk FHB10 optical smoke alarm is powered with a 10 year sealed lithium battery, guaranteed to last the entire lifespan of the alarm. Featuring Thermal Stability Enhancement Technology (TSE) and an X-Profile detection chamber, specifically designed to improve smoke detection and reduce false alarms. In addition, the FHB10 features a large combined test and silence button covering almost the entirety of the alarm face, making weekly testing simple.

  • FREE delivery
  • Suitable for installations in hallways, landings, living areas and bedrooms
  • Battery: 10 year sealed lithium battery
  • Warranty: 10 year manufacturer's warranty
  • Supplied with adaptor plate and FHB10 optical smoke alarm from Firehawk
  • Automatic activation and deactivation when attached and removed from the base plate
  • X-Profile detection chamber specifically designed to reduce false alarms
  • TSE (Thermal Stability Enhancement) Technology improves smoke detection
  • Combined test and silence button, almost the whole face of the alarm
  • End of life / low battery warning chirps can be silenced up to 10 hours
  • Suitable for installations BS 5839-6: 2019 Grade F1
  • CE marked and Kitmarked to BS EN 14604: 2005

Please Note: The FHSAP adaptor plate is used for mounting the FHB10 smoke alarm to an existing FireAngel SO-601 base plate – do not use the standard base plate included in the box with the FHB10 smoke alarm as well. The standard base plate is only intended for use on its own to directly mount an FHB10 to the ceiling.

Technical Data
Product Code FASO601
Alternative Product Codes ST-622, ST-622T, ST-622Q, ST-622R, s601, ST622, SO601
Brand Firehawk
Battery Type

10 Year Sealed Lithium

Dimensions (HxDia)

Adaptor Plate: 3.8 x 117mm

FHB10 Optical Smoke Alarm: 34 x 84mm

Operating Temperature

5°C to 30°C

Relative Humidity

< 85%

Sound Output



10 Years

Weight 0.21kg
Product Datasheets
FAQs (1)
Q. Can a smoke alarm be fitted with a sticky adhesive pad in a let property?

The sticky pad is suitable for all battery operated smoke alarms. However, we cannot judge if battery alarms are suitable for your let property, as let properties usually require mains powered alarms. There is some advice to this in the governments guides to fire risk assessments. Also see the LACoRS guide for let properties.

Pricing & Availability

Model Stock Price
Product Code: FASO601 Stock Level:
More than 20 in stock Expected dispatch: Today

£17.75 inc VAT

£14.79 ex VAT

Delivery Options

The following delivery options are available on this product.

Free Economy Delivery

Free of Charge - Orders will be delivered in 3-5 working days with Evri by Hermes

Express Delivery

£8.10 inc VAT - Orders will be delivered in 1-2 working days with Evri by Hermes

Excellent Warranty

This product is supplied with a 10 year manufacturers warranty as standard

Customer Reviews

80 customers have given this product an overall rating of 4.9 out of 5

Reviews by real customers

All of our product reviews are written by real customers that have purchased this product from us and are published without modification.

Rating: 5 / 5 Stars

Reviewed by: N M

Excellent service and item exactly as described

Published on: 14th June 2021

Rating: 5 / 5 Stars

Reviewed by: J M

Perfect replacement for a broken and out of date model

Published on: 31st October 2020

Rating: 5 / 5 Stars

Reviewed by: B W

Goes off when it should and only when it should. I bought this as a replacement for a previous incarnation of the same or similar alarm from safelinks. Very happy with it. No ridiculous squawking over slightly singed toast and other such nonsense - so when it does go off you know to take it seriously. Wouldn't be without it (them actually!)

Published on: 1st September 2019

Rating: 5 / 5 Stars

Reviewed by: P W

This was an update to one that was there Doesn't go off when your making toast

Published on: 8th June 2019

Rating: 5 / 5 Stars

Reviewed by:

Easy to fit. Luckily haven't had the need to test if it works yet.

Published on: 11th February 2019

Rating: 4 / 5 Stars

Reviewed by:

easy to replace old with new

Published on: 29th January 2019

Rating: 4 / 5 Stars

Reviewed by:

Great Product Bought to replace one in my caravan of the same make fitted back plate perfect

Published on: 16th November 2018

Rating: 5 / 5 Stars

Reviewed by:

It was easy to attach it to the previous 10 year old FireAngel's base plate, is neat and tidy on the ceiling and does what it's meant to do.

Published on: 10th November 2018

Rating: 5 / 5 Stars

Reviewed by:

does the job well love the fact it doesn't go off for toast

Published on: 10th November 2018

Rating: 5 / 5 Stars

Reviewed by:

Great speedy service good price good product

Published on: 16th August 2018

Show More

Looking for more information?

If you have any questions or would like more information about this product you can ask one of our specialists.

Live Chat Available Now
Direct Telephone 01507 464181