EXTECH 407750

EXTECH 407750 Sound Level Meter with PC Interface Big backlit display, PC interface & background sound absorber Features: Auto/ Manual ranging from 30 to 130dB in 6 ranges Meets ANSI and IEC Type 2 standards A and C selectable frequency weightings Fast and Slow selectable response times Background noise absorber mode for machine noise measurements filters ambient noise Large 3 1/ 2 digit display with 0.1dB resolution with backlighting and analog bargraph Electret condenser microphone provides 1.5dB accuracy Min/ Max plus analog output and tripod mount Max Hold latches maximum value on display RS-232 interface for capturing data directly on a PC, optional Windows compatible software Complete with batteries and carrying case Applications : Machine noise evaluation OSHA compliance testing Community noise measurement Noise ordinance PC interface for data collection SPECIFICATIONS : Digital Display: 3-1/ 2 digit ( 1900 count) Autorange LCD Bargraph Display: 50dB display range ( 1dB resolution) Measurement Range: 30 to 130dB ( 35 to 130dB for " C " weighting) Resolution: 0.1dB Accuracy: ± 1.5dB@ 94dB for a 1KHz sine wave Microphone: Electret Condensor .24 " ( 6mm diam.) type Frequency Weighting: " A " and " C " type Time Response: Slow/ Fast Sampling Time: updates every 0.5 seconds Measurement Frequency Range: 31.5Hz to 8KHz Analog Output: AC: 0.70Vrms ( full scale) ; DC: 10mVDC/ dB Applicable Standards: IEC 651 Type 2, ANSI S1.4 Type 2 Power Supply: 9V battery, optional AC adapter Dimensions: 10 x 3.1 x 1.5 " ( 256 x 80 x 38mm) Weight: 8.5oz. ( 240g)