 Supervised Class B monitoring of normally open, dry contacts  Total wiring distance from IAM to supervision resistor(s) of up to 500 ft (152 m)  Monitored connection is compatible with Simplex® 2081-9044 Overvoltage Protectors for outdoor wiring or electrically noisy applications  For use in indoor locations up to 158° F (70° C) such as attic spaces or similar applications For use with following Simplex control panels:  Model Series 4007ES, 4008, 4010, 4010ES, and 4100ES fire alarm control panels for IDNet communications  Model Series 4100/4100U/4100ES, 4120, 4020, and 2120 Communicating Device Transponders (CDTs) equipped with MAPNET II communications Model 4090-9001:  Enclosed design minimizes dust infiltration  Mounts in standard single gang electrical box  Screw terminals for wiring connections  Visible LED flashes to indicate communications  Optional covers are available to allow LED to be viewed after installation (requires mounting bracket, ordered separately) Model 4090-9051:  Encapsulated design for extended exposure to high humidity (LED is not present on this model)  Color coded 18 AWG leads for wiring IDNet communications provides current limited monitoring:  Provides monitoring of tamper switch (supervisory) and waterflow switch (alarm) on same circuit using one point  Available with IDNet communications only Multiple operation modes are available and are selectable at the control panel:  Contact closure status can be tracked  Momentary contact closure conditions can be selected at the panel to be latched or tracked (not available with the 2120 CDT) UL listed to Standard 864 * These products have been approved by the California State Fire Mar