The F220 Series Heat Detectors include: F220-135: An electronic rate-of-rise, fixed temperature heat detector that initiates an alarm if it senses a marked increase in temperature and/or when the ambient temperature reaches +135F (+57C). F220-135F: An electronic fixed temperature heat detector that initiates an alarm when the ambient temperature reaches +135F (+57C). F220-190F: An electronic fixed temperature heat detector that initiates an alarm when the ambient temperature reaches +190F (+88C). When mounted to the appropriate F220-B6 Series Mounting Base, the F220 Series Heat Detectors provide general property protection from fire. Heat detectors are not life safety devices.
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