Brief introduction

ND10 -type sound level tester is a pocket for acoustic measurement instruments for environmental noise , machine noise , vehicle noise , electrical noise, measurements can also be used for architectural acoustics , electro-acoustic and other measurements. Instrument performance is stable , easy to use , inexpensive, and easy to carry .

Technical parameters

1.Measuring range: ( in 2 × 10-5Pa as reference)
    1) A sound level : 40dB ~ 130dB;
     2) C Sound level : 55dB ~ 130dB.
2.Frequency range : 31.5Hz ~ 8kHz;
3 . Frequency weighting : A, C frequency weighting network ;
4 . Range attenuator sub-file error : ≤ 0.5dB;
5 . Meter scale : 0dB +10 dB: error ≤ 0.5dB-5dB ~ 0dB, error ≤ 1dB;
6 . Amplifier Output : Output voltage ( meter full the degrees ) 2V rms ;
7 . Output impedance: approximately 600Ω;
8 . Minimum load impedance : 10kΩ;
9 . Detector Features: Approximate RMS ;
10 . Time weighting : "F fast" and "S slow" ;

11 . Retention characteristics : attenuation per minute less than 2dB;
12 . Polarization voltage : 28V;
13 . Correction: sound level correction ; electrical calibration ;
14 . Conditions of Use: Operating temperature : -10 °C ~ +50 °C;
15 . Relative humidity : not more than 80% (+40 °C when ) ;
16 . Power supply : 9V battery 1 .

Dear customer, 

We ,Xi’an Yima Opto-electrical Technology Com.,Ltd. is an integrated economic entity of R&D,manufacturing and trading with over 20 years of history . 

Our business scope covers various fields such as biochemical analysis,environmental protection,industrial testing, bioscience,medical apparatus and instruments,internet technology and some frontier science.

Through a long-time development,we own a national resources system of various professional talents , abundant supply for various components &parts and special materials, full producing &processing equipments , strong Technological standardization and a complete quality assurance system. 

If you need OEM or ODM in manufacturing ,scientific research , market development and or you want to build your own brand in your country, it’s our honor to cooperate with you.In this way ,we have developed many products for our customers from the USA, Europe and South Africa and got good feedback on Alibaba