Silent Knight SD505-APS Smoke Detector (Refurbished - 90 Day Warranty)The SD505 APS compensates automatically for contamination in the environment. Detector calibration test viewing is simpleeven from a remote site. The SD505 APS offers a low profile installation and uses the model SD505 6AB base, compatible with other detectors in the series, allowing for complete application and placement flexibility. Like other Farenhyt smoke detectors, the SD505 APS offers easy installation, stable operation, RF transient

Dual input level allows the use of a 1Volt or 25Volt input signal

This means it can be used in open areas to provide early warning in environments where temperature extremes may exceed the capability of other types of smoke detectors

The strobe is individually address and individually controlled with power

The Simplex 49VO-WRF Strobe Application ReferenceProper selection of visible notification is dependent on occupancy

making installations fast and foolproof while virtually eliminating costly and time-consuming ground faults

flame retardant thermoplastic housings are available in red or white with a clear lens

The enclosure designs a re impact and vandal-resistant

These pull stations are dual-action models equipped with key lock/reset and designed to meet multiple applications with the installer and end user in mind

enhancing the aesthetic appeal of the mounted detectors

Mounts directly to 4-inch square electrical boxes

yet it stays locked in place to prevent unauthorized tampering

TrueAlert device reports conveniently identify information about each connected appliance