First Alert VISTAHEXPHW VISTA H Zone Expansion Module Spy camera Handheld set with RE520 head

Handheld set with RE520 head 560-596 MHz

This is accomplished by minimizing frequencies caused by noise

Transformerless preamplifier circuitry improves linearity across the full frequency range

Additional 9th button can be used to activate an optional MMF-300 monitor module installed inside the cabinet for applications such as HVAC shutdown

delivering competition-level responsiveness without the drag or limitations of cables

First Alert VISTAHEXPHW VISTA H Zone Expansion Module Spy camera Handheld set with RE520 headProduct Overview The VISTAHEXPHW hardwired zone expansion module allows you to add 8 additional hardwired zones (16 with zone doubling) per module to a VISTAH system. The module has a built in tamper allowing detection and reporting if the front cover is removed and is supervised so if the wiring is cut a supervision alarm will result indicating the module may not be operational. The flexibility to mount the module on a surface wall or to a gang box