Gain Express Calibrator 8930B Portable 3 Level

Description

Product Overview

The Gain Express 8930B sound level calibrator is engineered for precision and durability in demanding acoustic testing environments. Housed in a rugged ABS plastic shell, the unit measures 60 × 130 × 37.5 mm and weighs approximately 400 g, making it easy to transport without sacrificing stability. It operates on two AA alkaline batteries (included) and features an auto‑power‑off function to extend battery life. Calibration is performed at a standard 1 kHz frequency with three selectable reference levels—114 dB, 94 dB, and 104 dB—each verified by a 13.2 mm cavity diameter that ensures consistent acoustic coupling. The vivid LED display provides real‑time feedback: a green light confirms power‑on and warm‑up completion, while a red light warns of low battery. The device is certified for industrial use and carries a best‑seller rank in the Sound & Noise Meters category.

Usage

Designed for acoustic engineers, field technicians, and laboratory personnel, the 8930B excels in a variety of settings. Whether you are calibrating microphones on a construction site, adjusting sound level meters in a recording studio, or performing routine checks in an environmental testing lab, this calibrator delivers reliable reference levels quickly. Its benchtop design includes a stable base that prevents movement during calibration, while the compact form factor allows it to be carried in a tool bag or pocket. The intuitive LED indicators simplify operation, enabling users to verify calibration status at a glance, even in low‑light conditions.

Why Choose Us

Gain Express combines decades of acoustic expertise with meticulous manufacturing standards. Each calibrator undergoes rigorous quality control, ensuring frequency accuracy and level stability within industry tolerances. The inclusion of three calibrated levels eliminates the need for multiple devices, reducing inventory costs. Battery operation provides true portability, and the auto‑off feature safeguards against accidental power drain. With a 4.6‑star rating from 36 verified customers, the 8930B has proven its reliability and user‑friendliness across diverse applications.

Key Features

• Three precise calibration levels (114 dB, 94 dB, 104 dB) at 1 kHz
• Compact, lightweight design (60 × 130 × 37.5 mm, ~400 g)
• Vivid LED display with power‑on, warm‑up and low‑battery indicators
• Battery‑operated with auto power‑off to extend runtime
• Robust ABS housing and stable benchtop base for accurate positioning

FAQ

What type of batteries does the calibrator use?

The device requires two AA alkaline batteries, which are included in the package. They provide up to 200 hours of operation before the auto‑off feature engages.

Can I use the calibrator with any microphone?

Yes, the 13.2 mm cavity is compatible with most standard measurement microphones. Ensure the microphone is securely inserted for accurate calibration.

How often should I recalibrate my sound level meter?

It is recommended to perform calibration before each measurement session or at least once a month for critical applications to maintain accuracy.

Is the calibrator suitable for outdoor use?

Absolutely. Its battery‑powered design and rugged housing make it ideal for field work, and the LED indicators remain visible in bright sunlight.

What is the warranty period?

The Gain Express 8930B comes with a one‑year limited warranty covering manufacturing defects.