Check the listing for details. AEMC L261 Voltage Data Logger,0 to 600VAC/DC 4PKE9. Condition: New. Listed at 560.10 USD. Voltage Data Logger, AC Voltage Accuracy +/-0.5 Percent, Alert Type Light, Current Channels Not Applicable, For Phase Single, Maximum AC Current Measurement Not Applicable, Maximum AC Voltage Measured 600 V AC, Minimum Operating Temperature Degrees F 14 Degrees F, Maximum Operating Temperature Degrees F 122 Degrees F, Minimum AC Current Measurement Not Applicable, Maximum Sampling Rate 64 sec, Minimum AC Voltage Measured 5 V AC, Number of Records Stored 240,000 AEMC(R) L261• Isolated USB interfaceProvides continuous voltage recording for up to 8 wk. and real-time wave form viewing when connected to a PC. Sampling rate is programmable from 1/8 sec. to 1 in 24 hr. Has true RMS and voltage logging. Includes test leads, DataView(R) software, interface cable, and AA batteries.1-Phase Loggers.