Multi Channel Paperless Recorder 4in 2 Alarm USB Industrial Curve Data Temperature Humidity Inspection Item Type: Multi Channel Paperless Recorder Power Supply: AC100-240V, 50HZ Power: 10W Display: 4in Color LCD screen Resolution: 800x480 Resolution Measurement Channel: Six channels universal analog input Measurement Accuracy: 0.2%F.S Sampling Period: 1 Second ESD: Contact Discharge: 4000V, Air Discharge: 8000V Voltage Resistance: Between Measuring Input Terminals: 400V; Between Guard Ground And Measuring Terminal: 1000V Preheat: 30 Minutes after power on Operating Temperature: -10~60℃ Working Humidity: 0~85%RH(no condensation) Recording Interval: 1 Second, 2 seconds, 5 seconds, 10 seconds, 15 seconds, 30 seconds, 1 minute, 2 minutes, 5 minutes, 10 minutes, 30 minutes, 1 hour Data memory: 128 Mb, 900,000 records; One second interval recording duration is 10 days, other recording intervals correspond to the recording duration is so on. The recording duration is independent of the number of channels Other Records: 256 Alarm records 256 power failure records 256 operating logs Standard for RTU protocol USB: USB 2.0, support large capacity U disk