Lutron MMA-386SD real time recording of up to 3 channels of 4-20mA data with selected intervals and display. Lutron has extended the recently released M series of 3 channel loggers to include the most common process signal. The readings are stored in mA and may be converted to engineering units after transfer to a spreadsheet on the handy SD card. The logger has a large clear display of each channel value. Specifications: Measurement range (CH1, CH2, CH3): 4 to 20 mA Resolution: 0.01 mA Accuracy: +/- 0.5% + 0.02 mA Display: 60 mm x 50 mm Datalogger sampling time: 5/10/30/60/120/300/600 seconds Data error: Less than or equal to 0.1% no. of total saved data typically Data update: approx. 1 second Data output: RS232/USB PC Power supply: DC 9V adapter input, included. Backup power using batteries for the clock SD Card not included Download Product Sheet PDF