2-Pt. Acoustical Calibrator - Class 2, NIST Certified

2-Pt. Acoustical Calibrator - Class 2, NIST Certified

Ensure the accuracy of your sound level readings with the Sper Scientific 2-Point Acoustical Calibrator. This essential tool is designed for the field calibration of all Sper Scientific digital sound meters and any other sound level meter equipped with a 1" or ½" microphone.

Reliable & Compliant This Class 2 calibrator is NIST certified and fully conforms to the strict ANSI S1.40-1984 and IEC 60942-2017 Class 2 standards. It generates two stable acoustic signals at a frequency of 1000Hz (1KHz) ±4%, allowing you to verify and adjust your meter's readings with confidence.

Simple, Two-Point Calibration Calibration is straightforward. Simply fit the calibrator onto your sound meter's microphone using the appropriate adapter. Select either the 94.0 dB or 114.0 dB output level, and adjust your meter until its reading matches the calibrator's output. With a high accuracy of ±0.5 dB, you can trust your measurements are precise.

Designed for Field Use The calibrator is lightweight, portable, and includes a built-in battery check to ensure it's always ready for use. It comes complete with a protective carrying case, adapters for both ½" and 1" microphones, a 9V battery, and detailed instructions, making it perfect for on-site verification.

Broad Compatibility This calibrator is compatible with a wide range of Class 2 sound meters, including the following Sper Scientific models:

• 850019 Bluetooth Sound Meter
• 850018 Sound Recorder/Datalogger
• 840018 Sound Level Pen
• 850015 Graphic Display Sound Meter
• CD323 Sound Meter Datalogger
• 850013 Advanced Datalogging Sound Meter
• 850017 Integrating Sound Datalogger
• 840029 Digital Type 2 Sound Meter
• 840012 Detachable Probe Sound Meter
• 850014 Mini Sound Meter
• 850069 Environmental Quality Meter With Sound

Specifications:

• Calibration Levels: 94 dB and 114 dB
• Frequency: 1000Hz (1KHz) ±4%
• Accuracy: ±0.5 dB
• Standards: ANSI S1.40-1984, IEC 60942-2017 Class 2
• Microphone Compatibility: 1" and ½" diameter
• Power: 9V battery (included)
• Dimensions: 5" x 1¾" (127 x 48 mm)
• Weight: 8.4 oz (238 g)