Eight-channel temperature logger accepts up to seven external thermocouples (J, K, T, S, or E) and one internal sensor. Sampling rate, sampling method, and alarm dial-out can be quickly configured using companion Windows software. The Model DL-8T can measure and record over 1 million readings. It provides remote access via modem.No. of Channels: Eight; one for internal thermistor and seven for external T/C inputs. Internal Thermistor Range: -40 to 158°F (-40 to 70°C). Memory Size: 1,048,000 readings. Accuracy: ±1% of full scale. Clock Accuracy: ±8 seconds per day plus one sampling interval. Resolution: 12 bits. Sampling Methods: Continuous (first-in, first-out) or stop when full (fill-then-stop). Sampling Rates: Selectable from 0.04 seconds to once every 8 hours. Ambient Operating Temperature/RH: -50 to 160°F (-45 to 70°C), 0 to 95% RH, non-condensing. Connection: Removable screw terminal. Computer Requirements: IBM compatible running Windows® 3.1, Windows® 95, Windows® 98, Windows® 2000, Windows® ME, Windows® NT, or Windows® XP. Power Requirements: Built-in 3.6V Lithium battery. Housing Material: Plastic. Weight: 5 oz (110 g). Agency Approvals: CE.