Paradox NV37MR-K9A Indoor/Outdoor Wireless Narrow Curtain PIR Detector (433/868 MHz, Anti-Masking & Super Pet Immunity)

The Paradox NV37MR-K9A is an advanced wireless narrow curtain motion detector engineered specifically to protect window sills, sliding doors, and glass facades in both indoor and outdoor environments. Featuring a tight 0.5-meter curtain beam pattern at 5 meters (0.5 m X 5 m / 1.6 ft} X 16\ ft), the NV37MR enables residents or employees to move freely in close proximity to protected openings without triggering false alarms.

Operating on selectable 433 MHz or 868 MHz RF frequencies ("K9A" variant), it combines two dual-element PIR sensors with Paradox's Full Authority Digital Electronics Control (FADEC) and optical pet discrimination geometry for Super Pet Immunity (rejecting animals up to 50 cm / 1.6 ft). Equipped with dedicated Active IR anti-masking technology (detecting blocking objects or sprayed liquids up to 30 cm), an IP54-rated weatherproof enclosure, dual tamper switches, and power via two 1.5 V AA Alkaline batteries, the NV37MR provides robust perimeter defense.

Key System Features & Functionality

• Narrow Beam Optical Curtain: Projects a tight optical curtain pattern (0.5 m wide at 5 m) ideal for perimeter boundary monitoring of windows and doors.

• Super Pet Immunity & SHARP Mode: Configurable DIP switch settings for Pet Immunity Mode (up to 7.5 m range, ignoring small animals) or high-sensitivity SHARP Mode (up to 10 m range).

• Active IR Anti-Masking Protection: Dedicated anti-masking chip detects spray-paints, liquids, and physical blocking obstacles placed within 30 cm of the lens.

• Weatherproof IP54 Housing: Rugged ABS plastic construction operating across extreme temperatures (-40°C to +70°C) for outdoor window frame mounting.

• Dual Anti-Tamper Switches: Immediately reports cover opening or back-wall removal to the central panel.

• Long Battery Life: Powered by 2x AA 1.5 V Alkaline batteries (included), delivering up to 3 years of standard operation.