External temperature range -40 to 150 degree F (-40 to 65 degree C)
The LT2 data logger is a precision instrument for recording the temperature of the surrounding environment and/or the temperature of the external temperature probe. The remote probe allows the LT2 to record internal and external temperature simultaneously. The external temperature probe is interchangeable and replacement probes are available. The LT2 can store up to 21,500 temperature readings when a single probe (internal or external) is used. When both probes are enabled, 10,750 temperature readings can be recorded for each probe, as well as the temperature difference between the internal and external probes. The LT2 data logger has an internal temperature sensor and an external temperature probe. The external probe standard length is 15'. It can be extended up to 300' using an optional extension wire. Sample point capacity: 21500 points for single channel, 10750 points per channel for dual channel. External probe: -40 to 150 degree F (-40 to 65 degree C), 15' standard. Can be extended to 300'. Logger operating temperature range: 32 to 140 degree F (0 to 60 degree C) using alkaline battery. Storage temperature: -40 to 170 degree F (-40 to 77 degree C). Ambient operating relative humidity: 0 to 95 percent non-condensing. Alarms over and under alarms for internal and external sensors. Alarms are not available for temperature difference between the sensors. Calibration User single point offset calibration is available through software for both internal and external sensors. Time accuracy: +/-100ppm at 75 degree F. Temperature resolution: 0.1 degree F (0.05 degree C). Temperature accuracy: +/- 1.0 degree F (0.5 degree C). Power source 9v alkaline or lithium battery. Battery life (average use): 20 months using alkaline battery. 40 months using lithium battery. Measures 3" length by 2-1/2" width by 1-3/32" height, Weight: 2.5 oz (71g). 1 Year warranty.