Product Review

The calibrator generates these fixed sound level signals for calibration of sound level meters. This model works with any digital sound level meter. The unit ships with a ½" adaptor installed to accommodate sound meters and microphones with 1" or 1/2" microsphone.

Moreover, the calibrator employs a solid state integrated circuitry that provides accurate and stable performance. It is Compatible with SL-5868P sound level meter and an IEC942 Class I compliant.

WIDELY APPLICABLE

• Ideal for monitoring and testing noise levels at home, labs, factories, offices, theaters and for audio systems to see exactly how much you need to adjust for the surrounding sound
• Sensitivity calibration for microphones and Suitable for acoustics field and laboratory use
  

Features
Output levels : 94 dB and 114 dB.
Calibrated to produce 94dB at sea level.
For each 2000ft of elevation sea ND-9 produces 0.1dB less than the 94dB rating.
Extremely low influence of static pressure

Specifications
ACCURATE MEASUREMENT LEVEL : 94db & 114db
ACCURACY: ±0.3db(20°C, 760mm Hg)
FREQUENCY: 1000±0.1%Hz (allows calibration with A,B,C or D weighting networks or linear)
TEMPERATURE RANGE: -10~50°C (14~122 °F)
Storage (with battery removed) -40~65°C (-40 ~ 149 °F)
TEMP COEFFICIENT: 0 ~ 0.01dB/°C

Other Specifications
Power Supply: 9v Battery
Battery life approx.100 hours
Dimension: 48mm x 48mm x 138mm (5.43 x 1.89 x 1.89 inch)
Package Size: 17cm x 9cm x 6cm
Package Weight: 0.39kg

Set Includes
1 x Sound Level Meters Calibrator
1 x 9V Battery installed (FREE)
1 x English Instruction Manual
Standard factory packaging box