RF transmitter and receiver 1.time lapse 2.1 to 99 seconds or ... freely Model No.: DL-CS2015LTDescription: freely time adjust RF transmitter and receiver 1. Product Detail:DL-CS2015LT is a 2CH RF ... is on, then release, indicating the receiver is ready and waiting to learn from transmitter. c) Press the remote, the led ... . Wiring diagram: DL-CS2015LT freely time adjust RF transmitter and receiver