This Pocket VU Meter Kit With Enclosure has an LED bargraph which shows you the ambient room audio level using high sensitivity built-in microphone.
This kit has 5 red LEDs, incorporated microphone and adjustable sensitivity.
This has 2 x 15 LEDs (dot or bar indicator) and an adjustable input. Included in package: 1 front panel suitable for horizontal or vertical mounting. Specifications: Scale from: -23dB to +5dB (linear scale between -4 and +5dB). Precision: ± 0.5dB (1kHz). Input impedance:low input: 150mV - 5Vrms. High input: 1.5V - 50Vrms. Frequency range: 20Hz - 30kHz (-3dB). Power supply: 12 - 15V DC / 300mA. Dimensions: 5.9" x 2.2".
