THIS R8070SD HAS TRIPLE RANGE MEASUREMENT AND FEATURES DATA HOLD MAX/MIN FUNCTIONS AND AN EASY-TO-READ BACKLIT LCD DISPLAY. USING A SD CARD (MAX 16GB) A USER CAN MANUALLY RECORD UP TO 99 READINGS OR AUTOMATICALLY BY SELECTING A DESIRED SAMPLING RATE FROM 1 TO 3600 SECONDS. QUICKLY GENERATE AN EXCEL FILE WITH RAW DATA ALL WITHOUT THE USE OF SOFTWARE. OPTIONAL ACCESSORIES INCLUDE A TRIPOD AND AC ADAPTER FOR CONTINUOUS LONG-TERM MONITORING. THIS PRODUCT INCLUDES AN ISO CERTIFICATE WITH FULL DATA AND UNCERTAINTIES. FEATURES UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" HIGH ACCURACY OF ±1.0DB TO 1KHZ MEETS TYPE 2 STANDARDS TRIPLE RANGE MEASUREMENT (50DB DYNAMIC RANGE) A & C FREQUENCY WEIGHTING FAST & SLOW TIME WEIGHTING REAL-TIME DATA LOGGER WITH INTEGRATED SD MEMORY CARD USER SELECTABLE SAMPLING RATE FROM 1 TO 3600 SECONDS PEAK HOLD DATA HOLD AND MIN/MAX HOLD EASY-TO-READ BACKLIT LCD DISPLAY TRIPOD MOUNT FOR LONG-TERM MONITORING LOW BATTERY INDICATOR AND AUTO SHUT OFF THE SINGLE AC OUTPUT JACK (3.5MM STEREO MINI-PLUG) PROVIDES ANALOG SIGNALS TO FREQUENCY ANALYZERS LEVEL RECORDERS FFT ANALYZERS GRAPHIC RECORDERS ETC. OPERATING TEMPERATURE 32 TO 122°F (0 TO 50°C) STORAGE TEMPERATURE 14 TO 140°F (-10 TO 60°C) OPERATING HUMIDITY RANGE LESS THAN 85% RH INCLUDES UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" DATA LOGGING SOUND LEVEL METER ISO CERTIFICATE WITH FULL DATA AND UNCERTAINTIES WINDSHIELD BALL SOFT CARRYING CASE BATTERIES APPLICATIONS UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" PREVENTATIVE MAINTENANCE INDUSTRIAL MACHINERY/EQUIPMENT CONSTRUCTION SITES ENSURING SAFE WORKING CONDITIONS PUBLIC VENUES/CONCERTS CODE ENFORCEMENT TRAFFIC APPLIANCE NOISE TESTING LONG-TERM MEASUREMENT RECORDING OF ACOUSTIC LEVELS FOR ENVIRONMENTAL IMPACT STUDIES