The Nor1255 is a robust and reliable battery operated sound calibrator with single level/frequency. With a quartz-controlled signal generator has very high frequency stability on the market. Built-in reference microphone ensuring the constant sound pressure level inside the coupler and automatically adjust for the changes in volume, temperature, humidity, and barometric pressure.

Features

• Confirms to EN/IEC 60942:2017 Class 1 and ANSI S1.40–2006 class 1
• All-digital quartz-controlled signal generator
• Robust, compact and battery operated
• 114dB at 1000 Hz
• Supplied with accredited calibration certificate