The Honeywell Home R200C-N1 is a radio-interlinked carbon monoxide (CO) alarm that adds wireless network capability to the proven CO detection of the stand-alone R200C-1. Powered by a sealed 10-year lithium battery with an equally long-lived electrochemical CO sensor, it requires no maintenance for a decade. The built-in RF interlink module connects wirelessly with up to 11 other compatible Honeywell Home R200 series alarms — when CO is detected, every linked alarm sounds simultaneously, warning all occupants throughout the property regardless of where the hazard originates. The alarm is BSI Kitemarked to BS EN 50291-1, CE and UKCA marked, and meets the 2022 UK CO alarm legislation for homes in England, Scotland, and Wales — making it ideal for whole-home protection in interlinked Grade F1 systems.
10
Year battery & sensor life
12
Alarms interlinked (max)
BS EN
50291‑1
BSI Kitemarked
⚠ Carbon Monoxide Emergency: CO is invisible, odourless, and potentially fatal at high concentrations. If this alarm sounds without a test press, evacuate immediately — all occupants and pets — and call the National Gas Emergency Service: 0800 111 999 (24 hrs). Do not re-enter the property until cleared by a qualified engineer.
ℹ UK Legislation Compliance: The R200C-N1 meets the requirements of the Smoke and Carbon Monoxide Alarm (Amendment) Regulations 2022 (England), the Scotland Technical Handbook 2022, and equivalent Welsh regulations. It is suitable as part of a BS 5839-6 Grade F1 interlinked system.
⚠ Installation Placement: Install in every room containing a fixed combustion appliance (boiler, gas fire, open fire, wood burner, range cooker). Also fit in bedrooms and main living areas. If partitioned, position the alarm on the same side as the CO source. Mount at head height or on the ceiling — CO is slightly lighter than air.
Key Features
Radio Interlink — Whole-Home CO Warning
The built-in RF radio interlink module wirelessly connects with up to 11 other Honeywell Home R200 series alarms (CO, smoke, and heat). When CO is detected by the R200C-N1, all linked alarms activate simultaneously — a critical safety feature in multi-storey homes or properties where occupants may be sleeping far from the CO source. No wiring or hub is required.
10-Year Electrochemical CO Sensor
The electrochemical CO sensor is rated for the same 10-year service life as the battery — no mid-life sensor replacement is needed. The sensor responds accurately at the legally required CO concentration thresholds defined by BS EN 50291-1, and its performance is maintained throughout the alarm's full service life, confirmed by the matching 10-year manufacturer warranty.
Sealed 10-Year Lithium Battery
A permanently sealed, tamper-proof lithium battery pack powers the alarm for a decade without any battery replacement. The low-power standby chip preserves battery life between activations. At end of life, a clear end-of-life warning signal indicates the whole alarm requires replacement, preventing any undetected gap in CO protection.
Multi-LED Status Display
Three dedicated LED indicators provide instant status clarity: a green POWER LED (flashes every minute in normal operation), a red ALARM LED (flashes rapidly when CO is detected), and a yellow FAULT LED (indicates a fault condition). The entire front face also acts as the test/silence button — press and hold to test, press briefly to silence.
Super-Slim, Tamper-Proof Design
The super-slim profile keeps the alarm discreet on wall or ceiling, and the optional tamper-proof locking feature (via a small break-off cylinder on the bracket) prevents unauthorised removal — an important compliance feature for rental properties where landlords need assurance that alarms remain in place between tenancy inspections.
BSI Kitemarked & Fully Legislation-Compliant
The R200C-N1 carries BSI Kitemark certification to BS EN 50291-1 and is CE and UKCA marked. It meets the requirements of the 2022 CO alarm legislation for homes in England, Scotland, and Wales, and is suitable for use as part of a BS 5839-6 Grade F1 interlinked system — combining with R200S-N1 smoke alarms and R200H-N1 heat alarms for complete home coverage.
Technical Specifications
| Model |
R200C-N1 |
| Alarm Type |
Interconnected Carbon Monoxide (CO) Alarm |
| Sensor Technology |
Electrochemical CO sensor |
| Sensor Life |
10 years |
| Power Source |
Sealed 10-year lithium battery (non-replaceable) |
| Alarm Sound Level |
85 dB minimum |
| Interconnect Technology |
Radio Frequency (RF) wireless interlink |
| Max Interconnected Alarms |
12 (this unit + 11 others) |
| Compatible Alarm Types |
R200 series CO, smoke, and heat alarms |
| LED Indicators |
Green (POWER), Red (ALARM), Yellow (FAULT) |
| Normal Mode LED Flash |
Green LED: 1× every minute |
| Fault Silence Duration |
Up to 9 hours |
| Tamper-Proof Feature |
Optional locking cylinder on wall bracket |
| Warranty |
10 years (manufacturer) |
| Certifications / Standards |
CE, UKCA, BSI Kitemark, BS EN 50291-1 |
| Suitable System Grade |
BS 5839-6 Grade F1 |
| Legislation Compliance |
2022 England, Scotland & Wales CO alarm home legislation |
| Mounting |
Wall or ceiling mount; bayonet bracket with optional tamper lock |
| Colour |
White |
Frequently Asked Questions
What is the difference between the R200C-1 and the R200C-N1?
Both alarms share the same 10-year sealed battery, electrochemical CO sensor, 85 dB sounder, and slim design. The key difference is the R200C-N1 includes a built-in RF radio interlink module, allowing it to pair wirelessly with up to 11 other R200 series alarms. When CO is detected, all linked alarms sound together. The R200C-1 is stand-alone and only sounds locally. Choose the R200C-N1 for multi-room or multi-floor homes where whole-property warning is important.
Can the R200C-N1 interlink with R200S-N1 smoke alarms and R200H-N1 heat alarms?
Yes. The R200C-N1, R200S-N1, and R200H-N1 all use the same RF interlink protocol and are fully cross-compatible. Up to 12 units in total can be linked in one network, mixing detector types freely. This allows you to build a complete Grade F1 home safety system: CO alarms near boilers and gas appliances, smoke alarms in bedrooms and hallways, and heat alarms in kitchens — all sounding together if any hazard is detected.
Does the 10-year sensor life mean the alarm is accurate throughout its life?
Yes. The electrochemical CO sensor is rated and warranted for 10 years of accurate detection — the same duration as the battery. This means CO detection accuracy is maintained throughout the alarm's entire service life without any user intervention or sensor calibration. The manufacturer's 10-year warranty covers both battery and sensor performance, giving confidence that the alarm will perform to specification for its rated lifespan.
Is the R200C-N1 required by law in rental properties?
Under the Smoke and Carbon Monoxide Alarm (Amendment) Regulations 2022, landlords in England must install a CO alarm in any room containing a fixed combustion appliance (excluding gas cookers). The R200C-N1 satisfies this requirement. Its tamper-proof sealed battery and optional bracket locking feature ensure the alarm cannot easily be removed or disabled by tenants, and the BSI Kitemark certification confirms compliance with BS EN 50291-1 as required by law.
How do I test the R200C-N1, and how often should I test it?
Test the alarm at least once a week by pressing and holding the entire front face (which acts as the test/silence button) for the duration specified in the manual. The alarm will emit a test sequence of beeps and LED flashes to confirm it is functioning correctly. If the alarm is interlinked, all connected alarms will also sound during a test, confirming that the entire network is operational. Regular testing is recommended and in some cases required under tenancy agreements and fire risk assessments.
