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Xuwenzhong Electronics Instrument Firm 14yr.
Contacts:徐文钟Chat
Mobile:86-18757861683
E-mail:xuwenzhon@163.com
design criteria:
-- A. International commission IEC651 TYPE2 standard
-- B. American ANSI S1.4 TYPE2
* Measurement range: 30 to 130 dBA
* Accuracy: ± 1.5 dB
* Digital & resolution: 4 bits & 0.1 dB
* Frequency response: 31.5Hz to 8.5kHz
* Frequency weighting feature: a weighted (anthropomorphic dummy ears)
* Sampling frequency: 2 times/second
* Microphone: 1/2 inch condenser microphone
* Lock a large value




* Automatic induction backlight
* Low power display
* Automatic shutdown
* Packing method: blister + cardboard
* Power supply: 9V battery (6F22)
* Product Size: 57*36*149mm
* Net weight of product: 144g (including battery)
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