CAL1250 - Class 1 Multi-Frequency 1" Calibrator | Campbell Associates
CAL1250 – Class 1 Multi-Frequency 1″ Calibrator

CAL1250 – Class 1 Multi-Frequency 1″ Calibrator

Class 1 Multi-Frequency Sound Level Calibration, Anytime, Anywhere

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Class 1 Multi-Frequency 1" Sound Level Calibrator

Larson Davis Acoustic Calibrator Model CAL1250 is a battery-operated precision Class 1 multi-frequency 1" microphone calibrator used for the calibration of sound level meters and other sound measurement equipment with...

Key Product Features

Model: CAL1250

Dual Level 94 or 114 dB

Dual Level 94 or 114 dB

Class 1

Class 1

1" Microphone

1" Microphone

251.2 Hz or 1 KHz Multi-Frequency

251.2 Hz or 1 KHz Multi-Frequency

Temperature, Humidity

Temperature, Humidity

Barometric pressure

Barometric pressure

1" ½” 1⁄8” ¼” 3⁄8” Adapters

1" ½” 1⁄8” ¼” 3⁄8” Adapters

2 Year Warranty

2 Year Warranty

What a calibrator does...

Use a handheld acoustic calibrator (also known as a sound level calibrator) to produce a known sound pressure level at a known frequency. This level can then be used to adjust your sound measuring equipment to measure more accurately, since microphone performance can vary with weather conditions. This process, commonly known as field calibration or acoustic calibration, is typically performed both before and after every measurement.

Uncompromising Accuracy & Reliability

Uncompromising Accuracy & Reliability

The Larson Davis CAL1250 is the definitive Class 1 battery operated calibrator. Designed to meet the stringent requirements of UK noise regulations and IEC 60942 standards, its dual output levels (94 dB and 114 dB at 1 kHz) and multi-frequency 251.2 Hz ± 1 Hz or 1000 Hz ± 1 Hz.

It's robust, portable design is built for the rigours of UK field environments, providing a dependable tool that streamlines your workflow and guarantees the integrity of your acoustic measurements, project after project. The four combinations of frequency and level make the CAL1250 a great choice for extended field validation of instruments.

Lightweight & Easy for Calibration Anywhere

The CAL1250 includes a rugged carrying case but fits in any case designed to include the CAL1150 or CAL1200. Adapters for 1/2” and 1/4” microphones are included with optional adapters for 3/8” and 1/8” microphones available.

Lightweight & Easy for Calibration Anywhere

Key Product Specifications

Lightweight just 156g

Lightweight just 156g

USB-C Rechargeable

USB-C Rechargeable

15 Hour Runtime

15 Hour Runtime

1 Year Calibration Certificate

1 Year Calibration Certificate

Compatible Products

SoundExpert

New Model! 100 ms logging, Frequency Capture.

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SoundAdvisor

20 ms Logging, Frequency Capture.

Find out more

Sonitus NoiseSens

Remote Class 1 Noise Monitoring Terminal.

Find out more

Spartan

Occupational Noise Meter for Class 1 or Class 2 measurements with Dosimetry Function.

Find out more

Product Accessories

Every product needs flexibility to do whatever you want it to.

Download Datasheet
1” microphone adaptor for CAL1250 only
1” Microphone Adaptor

1” Microphone Adaptor

LD-ADP117

½” microphone adaptor for CAL1250 only
½” Microphone Adaptor

½” Microphone Adaptor

LD-ADP118

¼” microphone adaptor for CAL1250 only
¼” Microphone Adaptor

¼” Microphone Adaptor

LD-ADP119

1⁄8” microphone adaptor for CAL1250 only
1⁄8” Microphone Adaptor

1⁄8” Microphone Adaptor

LD-ADP120

3⁄8” microphone adaptor for CAL1250 only
3⁄8” Microphone Adaptor

3⁄8” Microphone Adaptor

LD-ADP121

USB charging cable (USB-C to USB-C) with included USB-C to USB-A adaptor
USB-C Charger

USB-C Charger

LD-CBL242-03

Transportation and storage case
Transit Case

Transit Case

LD-CCS064

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