Dynalock Dynalock 6420 Passive Infrared Request-to-Exit Sensor JMAC# DYNALOCK-6420 The DynaLock Series 6420 passive infrared Request-To-Exit sensor detects the differential between a human body and the floor. Featuring a dual-pyroelectric design, for increased stability against external light, the 6420s pyramid-shaped detection field... MSRP: Was: Now: $121.00 Add to Cart