The HCT-2P is a 2 Channel version of the HCT-4P. It transmits Channels 1 and 2 to our receiver products. This fob is also available as a Portable Duress/ Panic button where BOTH buttons need to be pressed for a transmission to occur. This minimises the chance of false triggering. In the Duress configuartion the fob is supplied with a neck chain.
Click the below link for a PDF file with full information.