System Sensor 4WTA-B 4-wire, photoelectric i3 smoke detector with thermal sensor and built-in sounder

Throughout the i3 series, installation is simple with its installer-friendly base and plug-in design. The base accommodates a broad range of back box and direct mounting options and provides ample space for pre-wiring the device. To complete the installation, the i3 detector plugs into its base with a simple Stop-Drop 'N Lock action. To reduce the likelihood of nuisance alarms, all i3 detectors are equipped with both drift compensation and smoothing algorithms. These capabilities minimize both short- and long-term causes of nuisance alarms, such as RF interference and dust accumulation. When connected to the 2W-MOD2 loop test/maintenance module or an i3 ReadyTM panel, 2 -wire i3 detectors can generate a remote maintenance signal when in a maintenance or freeze trouble conditio more »