Fire Projects three different monitor modules are available for fire alarm control panels – suiting a variety of applications. Monitor modules supervise a circuit of dry contact input devices, such as conventional heat detectors and pull stations, or to monitor and power two-wire smoke detector circuits.

HM-DMMI-UL is a standard-sized module (typically mounts to a 4”/10.16 cm square box) that supervises Class B circuit of dry contact input devices.

HM-MM3E-UL is a miniature monitor module – 1.3” (3.302 cm) H x  2.75” (6.985 cm) W x 0.65” (1.651 cm) D – that supervises Class B circuit of dry-contact input devices. Thanks to its compact design, the HM-MM3E-UL can be mounted in a single-gang box behind the device it monitors.

HM-DCZRM-UL is a standard-sized module used to monitor and supervise compatible two-wire, 24-Volt, smoke on a Class B circuit.