The KH300AG model 6-channel Paperless recorder collects data such as temperature, pressure, flow rate, liquid level, voltage, current, humidity, frequency, vibration, power, speed, etc Input signal : K、T、J、PT100、4~20mA、0~5V (other) accuracy:  ±0.2%FS          sampling period: <1s ALARM IN:  Up to 2         recording time: Up to 45 days Communication protocol:  MODBUS-RTU …