The SmaRT DIN-9H1 R5 and the extended range DIN-2H1 R5 base units for industrial control systems feature one Form C relay output that is rated at 10-A max and five Form A relays rated at 5-A max each. The SmaRT base unit enclosure allows it to be mounted either horizontally or vertically on a standard 35 mm DIN rail. The DIN-9H1 R5 or at 2.4 GHz for the DIN-2H1 R5-the base units provide a robust direct-line-of-sight link with a SmaRT handheld remote in congested radio environments.