Clear display of numbers and hands The lighting device on the dial is easy to read in the dark High sensitivity and easy operation Highly recommended for professional installation Ammeter: 60-0-60 AMP Water temperature gauge: 100-220 degrees Fahrenheit Oil pressure gauge: 0-80 Psi Working voltage: 12V Applicable models: Suitable for most and classic engines including (, , Olds, , , , and ) (, , ) Engine: 265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351w 347352 360 390 406 427 428 429 460 351c 351m 400m 273318340 360 361 383 383 400 413 426w 440 455 330 326 Colour: silver black Material: metal Size: 190 * 75 * 80mm Package Contents: 1 * Three in one instrument 1 * set of accessories Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.