We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

EXTECH Sound Level Calibrator: 94 dB Output Sound Pressure, 5% Freq Accuracy - Sound Level Calibrators
EXTECHSound Level Calibrators

EXTECH Sound Level Calibrator: 94 dB Output Sound Pressure, 5% Freq Accuracy

The EXTECH Sound Level Calibrator (MPN 407744) is a 94 dB output sound pressure calibrator with a 1,000 Hz frequency source. It offers a frequency accuracy of 5% and an output sound accuracy of ±0.5dB, with…

SKU 3G-OTH-175951

Brand
EXTECH
Item
Sound Level Calibrator: 94 dB Output Sound Pressure, 5% Freq Accuracy
Category
Sound Level Calibrators
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

EXTECH
Manufacturer Part Number
407744
Distortion
Less Than 2%
Freq Source
1,000 Hz
Freq Accuracy
5%
Frequency Accuracy
5%
Compatible with Brand
Extech
Output Sound Accuracy
±0.5dB
Calibration Certificate
Not Included

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

EXTECH Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EXTECH Sound Level Calibrator (MPN 407744) is a 94 dB output sound pressure calibrator with a 1,000 Hz frequency source. It offers a frequency accuracy of 5% and an output sound accuracy of ±0.5dB, with distortion less than 2%. This calibrator is compatible with Extech brand instruments and does not include a calibration certificate.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the EXTECH Sound Level Calibrator 407744 used for?

The EXTECH Sound Level Calibrator 407744 is used to verify and calibrate sound level meters and noise dosimeters. It generates a stable 94 dB output at 1,000 Hz, making it suitable for field or lab calibration of Extech instruments and other compatible devices.

What are the specifications of the EXTECH Sound Level Calibrator 407744?

The EXTECH Sound Level Calibrator 407744 delivers a 94 dB output sound pressure at 1,000 Hz. It has a frequency accuracy of 5%, output sound accuracy of ±0.5 dB, and distortion less than 2%. It is compatible with Extech brand instruments and does not include a calibration certificate.

Where to buy the EXTECH Sound Level Calibrator 407744 worldwide?

You can source the EXTECH Sound Level Calibrator 407744 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to use the EXTECH Sound Level Calibrator 407744 for calibration?

To calibrate a sound level meter, place the meter's microphone into the calibrator cavity and turn on the 407744. It outputs a 94 dB tone at 1,000 Hz. Adjust the meter to match the reference level. For best results, follow the meter manufacturer's procedure and use a traceable reference.

Used in

Common applications for EXTECH
HVAC system diagnostics — EXTECH AN340 vane anemometer for air velocity and humidity measurement
Industrial machinery maintenance — EXTECH 461995 laser tachometer for RPM and surface speed checks
Food and beverage quality testing — EXTECH RF12 analog refractometer for Brix concentration measurement
Refrigerant leak detection — EXTECH RD350 heated diode leak detector for R-513A systems
Environmental monitoring — EXTECH RH490 data logging hygro-thermometer for temperature and humidity logging
Lighting inspection — EXTECH LT300-NIST light meter for illuminance measurement in workspaces

EXTECH Products

3G Electric supplies EXTECH sound level calibrators. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
EXTECH Vibration Meter: Vibration, 10 Hz to 1 kHz, 7.87 in/sec Max Velocity Measured, LCD (MPN SDL800-NIST)
EXTECH
EXTECH Vibration Meter: Vibration, 10 Hz to 1 kHz, 7.87 in/sec Max Velocity Measured, LCD (MPN SDL800-NIST)
EXTECH Vibration Meter: Vibration, 10 Hz to 1 kHz, 7.87 in/sec Max Velocity Measured, LCD, RS-232 (MPN SDL800)
EXTECH
EXTECH Vibration Meter: Vibration, 10 Hz to 1 kHz, 7.87 in/sec Max Velocity Measured, LCD, RS-232 (MPN SDL800)
The AMPROBE SM-CAL1 sound level calibrator generates a 114 dB output sound pressure for field verification of sound level meters. It offers ±0.5 dB output sound accuracy, ±4% frequency accuracy, and ±0.5 dB distortion. Includes a 1/2-inch adapter and is compatible with any brand of sound level meter. Calibration certificate not included
AMPROBE
The AMPROBE SM-CAL1 sound level calibrator generates a 114 dB output sound pressure for field verification of sound level meters. It offers ±0.5 dB output sound accuracy, ±4% frequency accuracy, and ±0.5 dB distortion. Includes a 1/2-inch adapter and is compatible with any brand of sound level meter. Calibration certificate not included
The REED INSTRUMENTS R8090 sound level calibrator produces a 114 dB output sound pressure with ±0.5 dB accuracy and ±4% frequency accuracy. Distortion is ±0.5 dB. It is used for field calibration of sound level meters and noise dosimeters in industrial hygiene, environmental monitoring, and workplace noise compliance. Calibration certificate not included
REED INSTRUMENTS
The REED INSTRUMENTS R8090 sound level calibrator produces a 114 dB output sound pressure with ±0.5 dB accuracy and ±4% frequency accuracy. Distortion is ±0.5 dB. It is used for field calibration of sound level meters and noise dosimeters in industrial hygiene, environmental monitoring, and workplace noise compliance. Calibration certificate not included
EXTECH Vibration Meter Kit: Vibration, 10 to 1 KHz, 7.87 in/sec Max Velocity Measured, LCD, Included (MPN 407860-NIST)
EXTECH
EXTECH Vibration Meter Kit: Vibration, 10 to 1 KHz, 7.87 in/sec Max Velocity Measured, LCD, Included (MPN 407860-NIST)
The EXTECH VB400 is a standard vibration meter with an LCD display and magnetic base. It measures velocity up to 7.87 in/sec over a frequency range of 10 Hz to 1 kHz with an accuracy of ±5% of reading plus 2 digits. Suitable for monitoring vibration on rotating machinery such as motors, pumps, and fans to detect imbalance, misalignment, or bearing wear
EXTECH
The EXTECH VB400 is a standard vibration meter with an LCD display and magnetic base. It measures velocity up to 7.87 in/sec over a frequency range of 10 Hz to 1 kHz with an accuracy of ±5% of reading plus 2 digits. Suitable for monitoring vibration on rotating machinery such as motors, pumps, and fans to detect imbalance, misalignment, or bearing wear

More from EXTECH

View all EXTECH parts
Sound level calibrator generating 94 dB and 114 dB output sound pressure levels. Accuracy: ±0.5 dB output sound, ±5% frequency accuracy; distortion less than 2%. Used for field calibration of sound level meters in noise monitoring and acoustic testing
EXTECH
Sound level calibrator generating 94 dB and 114 dB output sound pressure levels. Accuracy: ±0.5 dB output sound, ±5% frequency accuracy; distortion less than 2%. Used for field calibration of sound level meters in noise monitoring and acoustic testing
EXTECH Sound Level Calibrator: Included, 94 dB_114 dB Output Sound Pressure, 5% Freq Accuracy (MPN 407766-NIST)
EXTECH
EXTECH Sound Level Calibrator: Included, 94 dB_114 dB Output Sound Pressure, 5% Freq Accuracy (MPN 407766-NIST)