Dwyer DW-USB-2-HA is a compact USB data logger with a user-replaceable 3.6V lithium metal battery. Its ABS plastic blend housing ensures durability. It offers memory capacity for 16,382 temperature and RH readings, 32,764 readings for voltage, current, and thermocouple, and 32,510 readings for carbon monoxide. The sampling rate can be adjusted from 10 seconds to 12 hours for temperature and RH models, 1 second to 12 hours for voltage, current, and thermocouple models, and 10 seconds to 5 minutes for CO models. The interface is through a USB port and it is compatible with Windows® 7, Windows® 8, and Windows® 10. The logger has programmable high/low alarms and stops recording when the memory is full.