جهاز قياس الصوت (جديد) – TETSL031

Measuring range:30-130dB
Dynamic range:50dB
Sound pressure accuracy:1.5dB(94dB@1KHz) ,1.5dB(94dB@8KHz)
Frequency response:30Hz-8KHz
Microphone: Polarized capacitance microphone
With backlight function
With lower battery indication function
With 3pcs LR03 AAA batteries
Packed by double blister