IEC 60942 Class LS/M & Class 1/M high accuracy & stability laboratory sound source.
The Rion NC-72B Pistonphone complies with BS EN IEC 60942: 2017 Class LS/M and Class 1/M when used with a suitable barometer.
It is a standard sound source intended for laboratory use with high accuracy and stability.
Sound pressure level tolerance is ±0.1 dB at the specified level and reference conditions.
Unique cutting edge design ensures accurate sinusoidal sound pressure and 2000 hours of operation without lubrication.
This precision device will work with standard half inch microphones as well as 1 inch and quarter inch microphones.
