Wireless ceiling mounted security alarm system. Hallway, living room installed burglar alarms, intrusion detection, 433.92MHz wireless home alarm system, 400m emittance alarm detector, intrusion sensor, burglarproof.<br> <br>Features:<br>1. Automatic temperature compensation.<br>2. Anti-white light interference.<br>3. Anti-EMI.<br>4. Pet immunity.<br>5. Low power test and report.<br>6. Two levels of PIR sensitivity optional.<br>7. Easy installation; elegant shape.
