Kidde K3003 Battery-Powered 40 mm Heat Alarm with 10-Year Sealed-In Lithium Battery

The Kidde K3003 is a compact 40 mm heat alarm powered by a sealed 10-year lithium battery that never needs replacing. Designed for private homes and garages — ideal for kitchens or living areas with solid-fuel appliances — it has received the Red Dot Award for Design Excellence.

Key Features

• Thermal heat sensor technology with rapid response to rate-of-rise and fixed temperature events.
• Sealed-in 3 V lithium battery providing power for the full 10-year life.
• Continuous monitoring with alarm activation at heat levels > 58 °C.
• End-of-life alert signals when the unit must be replaced after 10 years.
• Hush button temporarily silences nuisance alarms from cooking steam, etc.
• Test/Reset button for regular function checks and quick reset.
• Flexible mounting on wall or ceiling (screws and fixing plugs included).
• Loud 85 dB alarm at 3 m for a clear, audible warning.
• 10-year manufacturer’s warranty for long-term peace of mind.

General Specifications

• Model: K3003
• Operating Temperature: +4 °C to +38 °C (tested 0 °C to +55 °C)
• Operating Humidity: Up to 90% RH (non-condensing)
• Dimensions (W × D × H): 46 × 46 × 44 mm
• Weight (incl. battery): 46 g
• Sound Output: ? 85 dB(A) at 3 m
• Battery: Sealed-in 3 V lithium (10-year life)
• Compliance: Approved to EN60065
• Warranty: 10 years

Downloads

Download the K3003 Data Sheet (PDF)  |  Download the K3003 Instruction Manual (PDF)