Technology moves fast and has finally reached the often ignored area of fire and gas detection. Smoke and carbon monoxide (CO) alarms used to be standalone units, until the advent of interconnection. Once manufacturers had perfected hard-wired interconnection, allowing the alarms to communicate, the next step was wireless interconnection which made the whole process so much easier. But what is the latest step in smoke and CO alarm technology?
Safelincs is happy to introduce the all-new Nest Protect smart smoke and carbon monoxide alarm. Available in 230V mains and 9V battery powered versions, the Nest Protect combines an industrial-grade optical smoke sensor with a long-lasting carbon monoxide detector, making the 230V version the only mains powered combined smoke and CO alarm on the market. The Nest Protect is packed with features, including the ability to distinguish between smoke and steam to avoid false alarms and remote alerts via the Nest App. ‘Nightly Promise’ checks the power level of the alarm to ensure that there are no midnight chirps and the Nest Protect offers a handy Pathlight that lights your way during the night.
The Nest Protect can communicate with other Nest and Nest-compatible products, such as the Nest Learning Thermostat and the Nest Cam HD, giving you more control over your home and ensuring that you are safe and protected by the best technology!
If you have an questions or wish to place an order please ring 0800 612 6537 or visit https://www.safelincs.co.uk/nest/.
As well as testing your smoke and heat alarms on a regular basis, it is important to make a note of when the units actually need to be replaced. Studies have shown that the functionality of smoke and heat alarms can start to deteriorate when they reach a lifespan of 10 years. Each smoke and heat alarm should have a “replace by date” visible on the outside of the unit and we recommend that you adhere to this guideline.
When replacing a smoke alarm it can be quite difficult to recognise a suitable replacement product. In some cases, you may find that the current alarm model has been discontinued. With battery operated alarms, as there is no wiring in place, it is much easier to replace the unit for another smoke alarm with like-for-like features. Mains powered alarms are hard wired and are most likely interconnected during installation. It is because of this that finding replacement detectors can be difficult.
Working with Kidde Safety Europe, Safelincs are able to provide a list of mains powered discontinued Kidde smoke and heat alarms, along with their suitable product equivalents.
The new alarms will interlink with other, still working units of the previously installed smoke alarms. This means that there is no need to replace all of the units within a system if only some of the installed detectors have reached the end of their recommended lifespan. All new mains powered smoke and heat alarms are provided with a mounting bracket and a wiring connector. It is important to note that you need to replace the existing mounting base and re-connect the wiring to fit the new units. With any mains powered alarms, all electrical work should be carried out by a qualified electrician.
Safelincs offer a smoke alarm reminder service which allows customers to be notified when their smoke and heat alarms are due to be replaced, when the batteries need to be changed and reminds customers to test their alarms on a regular basis. The service is completely free and customers can choose if they wish to be reminded by email, SMS text message or by Twitter.
Optical sensors are more responsive to smouldering fires producing large particle smoke typical of fires involving furniture and bedding. They are more immune to invisible smoke produced by "burning the toast" and similar cooking fumes. this makes them ideal for siting in hallways close to kitchens where false alarms from ionisation alarms may be a particular problem. The BS 5839: Pt 6: 2004 recommends the use of optical alarms in circulation spaces of a dwelling, such as hallways and landings. Optical alarms are prone fo false alarms if exposed to steam and should not be located too close to poorly ventilated bathrooms or shower rooms.
- A light beam is pulsed in the sensor chamber every 10 seconds to "look" for smoke. Any smoke present has to be visible to the naked eye so that the receptor can "see" it. If no smoke is detected, the alarm woill remain in standby state.
- When large particles of smoke are detected, the light beam will be scattered onto the light receptor.
- This will then send an electrical signal to the IC (integrated circuit).
- This causes the alarm to sound.