High-Precision VU Meter Power Amplifier Meter Preamplifier Tube Level Meter

Product Features:

* Primary application is the monitoring of audio signal levels in power amplifiers, preamplifiers, tube amplifiers, and other audio devices. * High-precision (±3dB or less) and wide measurement range (-20dB to +3dB) provide accurate and reliable level monitoring. * Compact size (85mm x 45mm x 45mm) and lightweight (less than 200g) enable easy integration into various audio systems. * Internal LED backlight ensures clear visibility in any lighting condition, making it suitable for both home and professional use. * Durable acrylic faceplate with a scratch-resistant surface withstands daily use and ensures long-lasting performance. * Versatile mounting options, including a rear-panel hole for fixed installation, provide flexibility in positioning within the audio setup. * Features a tri-color LED scale (green, yellow, and red) for intuitive level indication. * Compatible with a wide range of input levels (0dB to +10dB) for seamless integration with various audio devices. * Gold-plated terminals ensure excellent electrical conductivity and resistance to corrosion. * Low power consumption makes it suitable for extended use without compromising battery life (requires 12V DC external power supply). * For more information, please refer to the product's user manual:

VU Meter Tutorial | Instructables

How to build a simple audio level indicator with LED lights? - Electrical Engineering Stack Exchange