Logo!8 Cmr2020 GSM Module Inputs: 2 Digital Inputs, abbreviated: 2 DI Operating temperature: 0...+55 °C Outputs: 2 Transistor Outputs, abbreviated: 2 TO Communications interface: GMS/GPRS, GPS Operating voltage: 12...24 VDC Series: LOGO!8 No. of digital inputs: 2 No. of transistor outputs: 2