Interconnectable Sentry Mains Heat Alarm with Replaceable Back-Up Battery
KF31Location
Kitchens, garages and high‑nuisance areas (connected only)Sensor
Thermistor heat
Warranty
10‑year manufacturer’s warrantyPower
230V AC mains with battery back‑up
Back‑Up Battery
Replaceable 9V alkaline (included)Alarm Grade
Grade D2Specifications
| Model | |
| Power Source | |
| Sensors | |
| Audio Alarm | |
| Interconnection | |
| Approvals / Certification | |
| Dimensions | |
| Weight | |
| Temperature Range | |
| Storage and Transport | |
| Humidity Range | |
| Warranty |
- Fully compatible with existing Kidde FIREX hardwired systems
- Clear 4‑SKU Sentry range across Smoke and Heat, Grade D1 and D2
- Installer‑first design supports faster fitting and cleaner replacements
- Supported by full launch assets including datasheets, product imagery and sell‑in materials
Product Documentation
Specifications
| Model | |
| Power Source | |
| Sensors | |
| Audio Alarm | |
| Interconnection | |
| Approvals / Certification | |
| Dimensions | |
| Weight | |
| Temperature Range | |
| Storage and Transport | |
| Humidity Range | |
| Warranty |
Product Documentation
- Fully compatible with existing Kidde FIREX hardwired systems
- Clear 4‑SKU Sentry range across Smoke and Heat, Grade D1 and D2
- Installer‑first design supports faster fitting and cleaner replacements
- Supported by full launch assets including datasheets, product imagery and sell‑in materials
Comparison Chart
Model Number
Detection Type
Power Source
Battery Life (Minimum)
Never Change Battery
Interconnected Alarms
Voice Alerts
NCC Certified (for Motorhomes / Static Homes)
10-Year Warranty
KF31
Heat
AC / Hard-wired
1-year (Back-up battery only)
KF31
Heat
AC / Hard-wired
1-year (Back-up battery only)
KF30
Heat
AC / Hard-wired
1-year (Back-up battery only)
KF30R
Heat
AC / Hard-wired
Backup battery only
KF31R
Heat
AC / Hard-wired
Backup battery only