2-Pt. Acoustical Calibrator - Class 2

Sper Scientific 2-Point Acoustical Calibrator - Class 2: Precision Sound Measurement at Your Fingertips

Ensure the unwavering accuracy of your sound level measurements with the Sper Scientific 2-Point Acoustical Calibrator. Engineered to Class 2 standards, this robust yet portable device is your essential tool for calibrating all Sper Scientific digital sound meters and any other sound level meter equipped with a 1-inch or 1/2-inch microphone. Ideal for professionals across environmental monitoring, industrial hygiene, noise control, and research, this calibrator provides consistent and reliable reference sound levels.

Effortless Calibration, Uncompromised Accuracy: Conforming rigorously to ANSI S1.40-1984 and IEC942 1988 Class 2 standards, our acoustical calibrator guarantees precision. Calibration is remarkably simple:

1. Gently place the calibrator onto your sound meter’s microphone.
2. Activate the calibrator.
3. Adjust your decibel meter's reading to either 94 dB or 114 dB with an impressive accuracy of ±0.5 dB. This straightforward process minimizes setup time, allowing you to quickly verify and maintain your equipment's calibration in the field or laboratory.

Key Features & Benefits:

• Dual-Point Calibration: Offers two precise sound pressure levels (94 dB and 114 dB re 20 µPA) for comprehensive calibration, covering a wide range of measurement needs.
• Stable Frequency Output: Operates at a highly stable frequency of 1 KHz ±4%, ensuring consistent and dependable calibration tones.
• Broad Compatibility: Includes adaptors for both 1/2” and 1” microphones, making it versatile for a wide array of sound level meters.
• Built-in Battery Check: A convenient indicator lets you monitor battery life, preventing unexpected power interruptions during critical operations.
• Rugged & Portable Design: Its compact dimensions (5” x 1⅞” / 127 x 48 mm) and light weight (8.4 oz / 238 g) make it easily portable for field use, accompanied by a protective carrying case.
• Ready-to-Use: Comes complete with a durable carrying case, microphone adaptors, clear instructions, and a 9-volt battery, so you can start calibrating right out of the box.

Designed for Demanding Environments: Built to perform reliably in a variety of conditions, the calibrator boasts an operating environment range of 32 to 104°F (0 to 40°C) and 10 to 70% relative humidity, with an altitude tolerance up to 2,000 meters. Its storage environment extends from 14 to 104°F (-10 to 60°C) and 10 to 90% RH, ensuring longevity and performance.

Compatible with a Wide Range of Sper Scientific Class 2 Sound Meters, including:

• 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

Technical Specifications:

• Output Sound Level: 94 dB and 114 dB re 20 uPA (under reference conditions)
• Output Frequency: 1 kHz ±4%
• Accuracy: ±0.5 dB
• Operating Environment: 32 to 104°F (0 to 40°C), 10 to 70% RH, Altitude up to 2,000 meters
• Storage Environment: 14 to 104°F (-10 to 60°C), 10 to 90% RH
• Test Conditions: 20°C, 65% RH, Atmospheric Pressure 1013 mbar
• Dimensions: 5” x 1⅞” (127 x 48 mm)
• Weight: 8.4 oz (238 g)

Invest in the Sper Scientific 2-Point Acoustical Calibrator to ensure your sound level measurements are always accurate, compliant, and ready for any challenge.