42280_安装调试说明书手册-en

IntroductionCongratulations on your purchase of the Extech 42280 Thermometer and Relative HumidityDatalogger.The 42280 is a wall-mount,tripod mount,or desktop indoor air quality monitor with aninternal memory capable of storing 16,000 readings(8000 temperature readings and 8000 relativehumidity readings)that can later be transferred to PC using the USB interface.This meter isshipped fully tested and calibrated and,with proper use,will provide years of reliable service.Material listSupplied MaterialsMeterUser Guide·USB cable·Program CD·Four(4)batteries;1.5V“AA'9V adaptorOptional accessoriesCalibration bottles (33%and 75%)for Relative Humidity Calibration (RH300-CAL)FeaturesLarge LCD display shows temperature,humidity,and date/time clock simultaneously16,000 internal memory capacity (8000 temperature;8000 RH%)Visual and Audible (with 117V AC adaptor only)AlarmsEasily configure datalogger through the keypad or via PC interfaceUSB PC interface with WindowsTM softwareWall mount,tripod mount,or for desktop use242280-en-GBV4.57/15