Key Technical Specifications:
Output Sound Pressure Level: 94 dB
Calibration Tone Frequency: 1,000 Hz sine wave
Frequency Accuracy: ± 5% for the 1 kHz output
Level Accuracy (SPL): ± 0.5 dB at 94 dB
Total Harmonic Distortion (THD): < 2% at 94 dB
Compatible Microphone Sizes: 0.5″ or 1.0″ microphones
— suitable for most sound level meters.
Operating Temperature Range: 0 °C to 50 °C (32 °F to
122 °F)
Power Supply: Two 9 V alkaline batteries
Power Consumption: Approximately 10 mA DC
Dimensions: 50 × 127 mm (diameter × length) — approx.
2.2″ × 5.6″
Weight: ~340 g (0.75 lbs)
Standard Compliance: Meets IEC 60942 (1997‑11) Class
2 standard — ensures consistent and recognized calibration performance.
Included Accessories: Two 9 V batteries, carrying
case, screwdriver, user manual (ready for immediate use).