Paradox PMD75M Wireless Digital Dual Optical Motion Detector with Pet Immunity

The Paradox PMD75M is an official heavy-duty 2-way wireless motion detector engineered for the Paradox M Series security ecosystem. Utilizing dual-element passive infrared (PIR) optical sensors, advanced Digital Auto-Pulse Signal Processing, and true Pet Immunity algorithms, it easily ignores domestic pets weighing up to 40 kg (90 lbs). Operating over encrypted GFSK 2-way wireless protocol, it delivers dependable volumetric indoor detection without false alarms caused by animals or sudden temperature shifts.

Key System Features & Functionality

• Dual Optical Detection System: Combines two single dual-element PIR sensors side-by-side to ensure precise target evaluation and eliminate thermal noise.

• 40 kg (90 lbs) Pet Immunity: Digital Shield algorithm prevents false alarms triggered by dogs, cats, or small household pets.

• Encrypted GFSK 2-Way RF: Operates over secure 2-way wireless frequencies (868 MHz or 914 MHz) with frequency and encryption hopping for maximum interference immunity.

• Digital Auto-Pulse Processing: Automatically analyzes signal timing and strength to distinguish genuine human intrusion from background noise.

• Automatic Temperature Compensation: Adjusts optical PIR sensitivity dynamically when ambient room temperatures approach body heat levels.

• Dual Anti-Tamper Switch: Detects unauthorized opening of the detector enclosure or detachment from the mounting surface.