... Modbus protocol .USB drive KH300AG Universal Paperless Temperature Data Logger.96x96x80mm,TFT color LCD.Universal 6 inputs.RS485 Modbus ... for temperature, humidity,pressure, flow, frequency, vibration, current voltage etc measured.ApplicationPetroleum, Chemical, Pharmaceutical, Metallurgy, Paper, Electricity, ... , T RTD: Pt100, CU50, CU100)DC current: 4-20mA, 0-10 mA)DC current: 0-5VDC, 1-5VDC)Others: ...