Radio remote control, 2 digital I/O Transmitter + receiver, UHF band 433MHz, 2 digital I/O, 230Vac / 9-30Vdc power supply + basic aerial. Power supply: 230Vca, 9…40Vdc (7…40Vdc in LOW POWER mode) Operating frequency: 433.92MHz Transmission power: 10mW Aerial: 50Ω with BNC-type connector Inputs / outputs: 2 voltage-free digital inputs 1 level control input with 2 probes 2 relay outputs (250V / 5A max.) 1 error output (250V / 5A max.) Battery charge voltage: Selector switch in 12V: 14.1V Selector switch in 24V : 27.4V Battery charge current: 62mA max. Low battery warning voltage: 11.85V with battery connected at input +BAT 12.6V cwith battery connected at input +PANEL