เครื่องวัดเสียง Model DT-8851

Digital Sound Noise dB Meter Data Logger USB datalogger
DT-8851 Industrial High Accuracy Digital Sound Noise Level Meter Data Logger with USB Interface

Product Description

This is a brand new CEM DT-8851 C E certified digital sound / noise level meter. This meter has a built-in USB port which connects to a laptop PC for recording the sound level over a period of time. This is an ideal instrument for noise monitoring in factory, school, business and traffic areas. This meter conforms to the IEC61672-1 Class 2 and ANSI S1.4 Type 2 standards.

This device operates on a 9V battery (about 30 hours) or an AC adapter (included). It is very accurate (+/- 1.4 dB) and durable, an ideal companion for your field projects. A heavy duty carrying case is also included for the protection of the device and your convenience.

PLEASE NOTE: This meter does not have internal memory. It needs to attach to a computer to log data.

Features

* Conforms to the IEC61672-1 Class 2 and ANSI S1.4 Type 2 standard for sound level measurement

* MIN and MAX sound level hold
* Over range / under range display
* A & C frequency weighting
* Fast (125ms) and slow (1s) time weighting
* Analog AC/DC output for connection to frequency analyzer or X-Y shaft recorder.
* USB interface for computerized digital sound level recording

Specification
Accuracy +/- 1.4 dB
Frequency range 31.5 Hz - 8KHz
Dynamic range 50dB
Level ranges Lo: 30 - 80 dB

Med: 50 - 100 dB

Hi: 80 - 130 dB

Auto: 30 -130 dB

Time weighting Fast: 128 ms
Slow: 1 sec

Microphone 1/2 inch electret condener microphone
Resolution 0.1 dB
Display update 2 times / sec
Analog output AC : 1Vrms,
DC : 10mv/dB

ข้อดี
- เป็นของ Brand Name สินค้านำเข้าจากอเมริกา
(15,000.-) ดูรายละเอียดสินค้าอื่นที่ http://taladklongtom.com/