The REED R6020 is a compact USB data logger that records temperature and humidity readings for later review on a PC. It covers a temperature range of -40 to 70C (-40 to 158F) and 0-100% relative humidity, storing up to 32,000 combined readings at adjustable sampling intervals. It plugs directly into a USB port for setup and download, and includes an LED alarm indicator plus a wall-mount bracket for fixed installations.