The SV 34B Class 2 Acoustic Calibrator is a reliable and accurate tool for calibrating Class 2 sound level meters and noise dosimeters with 1/2 microphones. The calibrator generates a reference signal of 114 dB at 1 kHz and is designed with robust housing for a secure grip. The calibrator also compensates automatically for temperature and humidity changes, making it an ideal choice for a variety of applications. Additionally, the use of MEMS technology provides the best price-performance ratio in the current noise market. The SV 34A meets IEC 60942: 2003 standards and has a tolerance of +/- 0.5 dB SPL and +/- 0.2% in frequency. The built-in static pressure and temperature compensator ensure accurate readings, even in varying conditions. The calibrator operates using AAA batteries and is suitable for use within a temperature range of 0°C to +40°C