Features: Simple and easy to use Digital display with backlight Light and small size Removable 1/2" transducer cap Meets IEC60942 (IEC942) Class 1 standard Robust design provides accurate and reliable performance Suitable for personal, field and laboratory use Characteristics: Sound pressure level: 94dB and 114dB Accuracy: ±0.3dB ( 20°C, 760 mm Hg) Frequency: 1000 ± 0.01 % Hz allows calibration with A, B, C or D of linear weighted networks or Size of the microphone: 1" and 1/2" microphones Temperature coefficient: 0~0.01dB/°C Altitude effects: Approximately decreases 0.1dB for every 2000ft increase in altitude from sea level to an altitude of 12,000 feet, or a comparable atmospheric pressure change (approximately every 50 mm Hg decrease) Operating temperature: -10~50 °C You Storage temperature: -40~65 °C (without batteries) Power supply: 2 x AAA 1.5 V (excluded) Weight: approx. 200g Set includes: 1 x Sound Level Calibrator 1 x English Manual Standard package
