• Output Sound Level : 94dB and 114dB under reference.
• Standard : Confirms to IEC 942 Class 1.
• Battery Life : Approx 100 hours.
• Battery : Single 9V transistor Battery. (NEDA 1604)
- Storage Temperature range : -40 ~ +65 C (with batteries removed).
• Altitude Effects : Approx. 0.1 dB decrease for each 2000 feet increase in altitude from sea level to 12,000 feet elevation, or comparable atmospheric pressure change.(approx. every 50 mm of Hg decrease).
• Frequency of 1000 ± 0.1% Hz allows calibration with A / B / C or D weighting networks or linear. :
This 1kHz 94/114dB professional sound calibrator is for 0.5 in. or 1 in. microphones. Calibrates and verifies sound level meter operation. Level position switch to select 94dB or 114dB with power on LED indicator light. Durable die-cast aluminum housing generates a 1kHz sine...