Next+ PIR MCW and Next+ K9-85 MCW are fully supervised wireless detectors with anti-collision PowerCode technology. Next+ PIR MCW is compatible with PowerMax® and all Visonic PowerCode wireless panels and receivers. Next+ K9-85 MCW is designed to enable homeowners to secure their homes while allowing their pets to move freely anywhere in the house. Coverage area: 15m (50ft) / 90° Contemporary, sleek design suits any decor Pet-tolerant version ignores animals weighing up to 38kg (85lb) Compact size: 94.5 x 63.5 x 53mm (3.7 x 2.5 x 2.06in