A system (10) for remote detection of pests, in this case as applied to a domestic dwelling (11) where a base station (12) communicates with eight detector or monitor units (13). The dotted (lines (14) indicate wired or wireless communication between the units (13) and the base station (12). As used herein the expressions “monitor” and “detector” are used interchangeably or where the detector is used as part of a box or cartridge where the detector is part (and may be reusable and separable) the whole unit including the detector part may be referred to as a monitor.
