How does one calibrate the calibrator?

Hi, here is the calibration instruction for your reference. LINK: https://cd50.net/wp-content/uploads/2022/09/9ND_E.pdf

Does this Sound level meter calibrator come with a calibration certificate to confirm that it is in fact emitting sound at 94dB and 114dB?

Hi,the standard set comes without a calibration certificate. The calibration certificate is optional. Please contact our customer service through Amazon message to get more details if you need a certificate.

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Description

🎶 Elevate Your Sound Game!

LONG LASTING POWER - Enjoy approximately 100 hours of battery life, ensuring reliability during critical measurements.
USER FRIENDLY DESIGN - Experience effortless one-handed operation, perfect for busy professionals.
ALTITUDE ADAPTABILITY - Calibrate with confidence, even at high altitudes, with minimal deviation.
PRECISION CALIBRATION - Achieve accurate sound measurements with dual output levels of 94dB and 114dB.
VERSATILE COMPATIBILITY - Easily calibrate various sound instruments with A, B, C, or D weighting networks.

The Sound Level Meter Calibrator ND9B is a professional-grade tool designed for precise noise decibel calibration. With dual output levels of 94dB and 114dB, it fits both ½ inch and 1 inch microphones, ensuring versatility. Its user-friendly design allows for easy one-handed operation, while the impressive battery life of approximately 100 hours guarantees long-term reliability. This calibrator conforms to IEC942 Class 1 standards and is adaptable to altitude changes, making it an essential tool for sound professionals.

Specifications

Manufacturer	Gain Express Holdings Ltd
Part Number	ND9B
Package Dimensions	16.8 x 8.8 x 5.5 cm; 200 g
Batteries	2 AAA batteries required.
Item model number	ND9B
Colour	Digital Calibrator 94db & 114db With Lcd
Material	ABS
Thickness	51 Millimetres
Power Source	Battery-Powered
Voltage	9 Volts
Item Package Quantity	1
Number of Pieces	1
Temperature Range	Operating Temperature : -10~50 Degrees Celsius
Measurement System	(dB) decibel
Special Features	Lightweight and Small Size with Blacklight
Usage	Design to check the accuracy of many types of sound instruments.
Batteries included?	No
Batteries Required?	No
Battery Cell Type	Zinc Carbon
Battery description	battery_type_aaa
Item Weight	200 g

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