HKS Direct Bright (DB) Meters are new Electro-Luminescent versions of the popular 52mm & 60mm mechanical units that use EL technology to emit a soft-blue illumination for a brilliant illuminating luster to complement their easy to read functionality. Available in white or black face with contrasting numeral display. While most of today's vehicles come equipped with factory gauges, rarely do they measure accurately. Most display a numerical value based on calculations of readings from the air flow meter or mass air sensor. While this is adequate for most stock vehicles, the true performance enthusiast demands more from their gauges. Available in black face or white face, the Chrono Meter Interface Unit is required for meter use and can link up to 6 meters. Type 2 sound level meter meets ANSI and IEC 651 Type 2 standards. Measures sound in two ranges from 35 to 130dB. Slim design is ideal for portable use. Backlit display for use in dark areas.