PIR1680 50 x 50 SMART MICROPROCESSOR PIR MOTION
50 Foot X 50 Foot Range. -Built-in low temperature alarm for heating system monitoring (protects against frozen pipes). -Look down/Creep zone. -Breakthrough Microprocessor-Based performance with exclusive D.C.I.D (Dectect & Compare Imaging Diagnostics) Ultimate PIR for FALSE ALARM AVOIDANCE