Wireless 433/868mhz Pir Motion Sensor Movement Detector For Focus Alarm Systems. PIR Infrared Motion Sensor - MC-335RDMT Elevate Your Home Security with the MC-335RDMT Wireless PIR Infrared Motion Sensor. Designed with Advanced PIR Technology, This Sensor Detects Human Movement with Exceptional Accuracy. Its Digital Processing Ensures High Immunity to False Alarms and Outstanding Stability, Making It an Ideal Choice for Any Security System. The Sensor Features Pet Immunity for Animals Up to 25 Kg, Allowing You to Monitor Your Space Without Worrying About False Triggers from Your Pets. With a Detection Distance of 12 Meters and a Wide 110-degree Angle, This Motion Sensor Efficiently Covers a Large Area. It Also Features Anti-white Light and Anti-EMI Protection for Enhanced Reliability. The Sensor is Compatible with 433MHz and 868MHz Frequencies, Offering Flexible Installation Options. The MC-335RDMT is Equipped with a Low-power Consumption Design and Includes a Tamper Switch for Added Security. The Built-in Battery Ensures Continued Operation Even During Power Interruptions. Compatible with Various Focus Alarm Systems, This Sensor Offers a Seamless Integration for Your Smart Home. Summary of Features: - Model: MC-335RDMT - Detection Range: 12 Meters - Detection Angle: 110 Degrees - Pet Immunity: For Pets Up to 25 Kg - Frequency Options: 433MHz / 868MHz - Power Supply: CR123 Lithium Battery (not Included) - Anti-White Light & Anti-EMI: Over 9000LUX & >30V/m (30MHz–1GHz) - Installation Height: 2.4m to 4.8m - Working Temperature: -10℃ to +50℃ - Compatibility: Supports Focus Alarm Systems Such As ST-VGT, ST-IIIB, and ST-IIIGW - Tamper Alarm: Built-in Protection Against Tampering Perfect for Enhancing Your Home Security with Minimal False Alarms and Robust Features..