The CHQ-SIM has been designed to allow a single monitored input to be connected to the ESP loop.  This provides a compact, low-cost option where the installation of the larger CHQ Range of Modules might be difficult.
 
The CHQ-SIM features flying leads as well as a wiring terminal block for loop connection, making installation quick and easy.  The unit is addressed with the TCH-B100 Hand Held Programmer utilising the on-board programming connector and a PL-3 lead.