Bosch F220-135F Electronic Fixed Temperature 135 Heat Detector

Fixed Temp 135 heat detector.

An electronic rate-of-rise, fixed temperature detector that initiates an alarm when the ambient exceeds +135°F (+57°C) or increases by +15°F (+8.3°C) more in less than 1 minute. detectors use low current circuitry, so they can connect to 12 VDC nominal 24 power source circuits. mounted on appropriate F220-B6 Series Mounting Base, F220 provide general property protection from fire.

• Two-wire four-wire bases
• 50 ft (15.2 m) maximum spacing between detectors
• Visible identification of model: F220-135F = gray ring
• Tamper detection
• Dual color LED