Bosch F220-135 Conventional Fixed Temp (135F) Heat Detector

NOTE: This part is discontinued by the manufacturer. Bosch F220-135 is an electronic rate-of-rise, fixed temperature heat detector that initiates an alarm when the ambient temperature exceeds +135°F. Configure the detectors as either two-wire or four-wire depending on the mounting base selected. These detectors are compatible with any of the F220‑B6 bases. COMPATIBLE BASES: — F220‑B6 12/24 VDC Two-wire Mounting Base — F220‑B6R Standard 12/24 VDC Four-wire Mounting Base — F220‑B6RS 24 VDC Four-wire Mounting Base with Sounder — F220‑B6C 12/24 VDC Four-wire Mounting Base with Auxiliary Form C Relay — F220‑B6E 12/24 VDC Four-wire Power Supervision Mounting Base — F220‑B6PM 24 VDC Four-wire Addressable Master Base — F220‑B6PS 12/24 VDC Four-wire Addressable Base