Feature: 1. Multifunctional: This multi channel paperless recorder is multifunctional and can detect various signals such as temperature, pressure, flow, current, voltage, level, humidity, etc., so as to control the real time on site situation. 2. Multi Channel: This multi channel paperless recorder adopts multi channel, real time monitoring, accurate display, so you can easily know the production (experimental) process changes in the trend of the historical curve can be easily traced. 3. 4 Inch Color LCD: This multi channel paperless recorder adopts a 4 inch color LCD screen, the data view is more intuitive, the measured value, the alarm status is clear at a glance. 4. Good Compatibility: This multi channel paperless recorder can match all kinds of industrial sensors, such as current transmitters, temperature sensors, pressure transmitters, liquid level transmitters, etc., and be used together for real time monitoring. 5. Various Values Recording: This multi channel paperless recorder can record real time value, average value, maximum value and minimum value, the recording can choose the time interval of 1 second to 4 minutes optional, the longest continuous recording can be up to 15 years. Specification: Item Type: Paperless Recorder Material: ABS Power Supply: AC100-240V, 50HZ Power: 10W Display: 4 Inch Color LCD Resolution: 800 x 480 Resolution Measurement Channel: 4 Channel Universal Analog Input Measurement Accuracy: 0.2%F.S Sampling Period: 1s ESD Anti Static Discharge: Contact Discharge 4000V, Air Discharge 8000V Withstanding Voltage: Between Measurement Input Terminals: 400V, Between Protective Ground and Measurement Terminals: 1000V Warm Up: 30 Minutes After Power On Operating Temperature: -10-60??C Operating Humidity: 0-85%RH ( No Condensation ) Recording Interval: 1s, 2s, 5s, 10s, 15s, 30s, 1 Min, 2 Min, 5 Min, 10 Min, 30 Min, 1 Hour Data Memory: 128 Mb, 900,000 Records, 10 Days for 1 Second Recording Interval, 10 Days for other Recording Intervals, and so on. The corresponding record length for other record intervals is similar, and the record length has nothing to do with the number of channels. Other Records: 256 Alarm Records, 256 Power Off Records, 256 Operation Logs RS485: 1 Channel, Standard for ModbusRTU Protocol Printing: 1 Channel, Micro Printer, 3.3V TTL Level Interface USB: USB 2.0, Support Large Capacity U Disk ( Shipped Without U Disk ). Package List: 1 x Paperless Recorder1 x Screwdriver 4 x Mounting Bracket 2 x Screw 1 x Manual