EXTECH 407750

* NIST Certificate of Calibration
* 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

Spec Summary:

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)