©2012 John Sherman Agencies Ltd. Reed ST172 Temperature/Humidity Data Logger with LCD Display ST172 Holder with Lock (included) Features Records up to 32,700 ambient temperature and relative humidity readings User selectable recording intervals from 1s to 24h Minimum/Maximum function with alarm Real-time clock stores data and time LCD readout displays current temperature (°F or °C) or humidity reading, min/max reading with date and time Download data directly to a PC via USB cable supplied Includes data logger, mounting bracket with screws, USB cable, software diskette, security lock and battery Specifications Humidity Range: 0 to 100% RH Resolution: 0.1% RH Accuracy: ±5.0%: 0 to 20% & 80 to 100%; ±3.5%: 20 to 40% & 60 to 80%; ±3.0%: 40 to 60% Temperature Range: -40 to 70°C (-40 to 158°F) Resolution: 0.1°C/0.1°F Accuracy: ±2°C (±3.6°F): -40 to -10°C & 40 to 70°C (-40 to 14°F & 104 to 158°F); ±1°C (±1.8°F): -10 to 40°C (14 to 104°F) Sampling Rate: User selectable rate: 1s to 24h Power Supply: 1 x 3.6V lithium battery Dimensions: 94 x 48 x 33mm Weight: 115g