Description
The Fenwal 12 E27121 020 04 Detect A Fire temperature sensor is a fixed temperature thermal detector designed to sense elevated ambient temperatures and provide a reliable close on rise contact output at 190 °F (88 °C). This rugged sensor is part of the long standing Detect A Fire series used in fire protection and safety systems to trigger alarms or activate suppression equipment when a temperature threshold is reached.
Key Features
- Fixed temperature heat sensing device with a 190 °F (88 °C) activation set point for dependable thermal detection.
- Close on rise contact action — contacts close and signal when temperature reaches the set point, enabling alarm or control system response.
- Vertical mount configuration with durable 300 series stainless steel shell and head for long service life.
- Hermetically sealed internal contacts protect against environmental contaminants and improve reliability.
- Fast response time index for prompt activation under fire or over temperature conditions.
- Color coded (white) to indicate temperature rating for easy identification.
- Factory preset and ROHS compliant for consistent performance.






