Nor1256 class 1 sound calibrator is very light and compact while it has two different frequencies and levels. This allows customer to evaluate the linearity of frequency and level. This calibrator also measures the environmental conditions such as air pressure, temperature, and humidity.

Features

• 114 and 94dB @ 1000 and 250 Hz
• Conforms to EN/IEC 60942:2017 Class 1, and ANSI S1.40–2006
• Ultra-stabile silicone reference microphone is inside
• Fully compensated for static pressure, humidity, and temperature
• Sound pressure independent of microphone equivalent volume
• Robust, compact and battery operated
• Measurement of humidity, temperature and static pressure
• Delivered with individual accredited calibration certificate