Flex 8EPV Transmitter
Eight 1-step, 2-step, 3-step or stepless pushbuttons

Flex 12EPV Transmitter
Twelve 1-step, 2-step, 3-step or stepless pushbuttons

Flex 8VRX Receiver
Up to 26 digital outputs (relays) and 4 analog outputs (voltage and current)
Flex 12VRX Receiver
Up to 38 digital outputs (relays) and 6 analog outputs (voltage and current)