Testing Parameter: Range Allowable Tolerance
DC Resistance(¦¸): 20-9999 & plusmn;1%
Insulating Resistance(¦¸): 1-200M & plusmn;2%
Damping: 0.05-0.85 & plusmn;0.01
Natural Frequency(Hz): 1-100 & plusmn;1%
Sensitivity(V/(cm-s-1)): 0-10 & plusmn;2%
Distortion: 0.02%-10% & plusmn;0.05%  
Polarity knocking: use different voice to distinguish PN pole
Operating Temperature(ºC): -20-40
Relative Temperature: ¡Ü80%
Storage Temperature(ºC): -40-60