Features 1、Support a Variety of Oil Detection: professional brake fluid liquid detector support for multiple oil type. 2、High Precision Metal Probe: good quality probe is not easy to get rust, high sensitivity for accurate measurement. 3、Sound and Light Alarm: when the brake oil and water content is too high, it will automatically alarm. 4、Numerical Display of Water Content: clear LCD screen for water content value display. 5、LCD Display with 3 Colors Backlight: the backlight color will various according to the measured content. 6、Reliable Quality: ABS material with good impact resistant ability, fall-proof, dust-proof and water-proof. 7、Clip Design: it allows you to clip the tester on the pocket of jeans or backpack. Specification Features: Support a Variety of Oil Detection: professional brake fluid liquid detector support for multiple oil type. High Precision Metal Probe: good quality probe is not easy to get rust, high sensitivity for accurate measurement. Sound and Light Alarm: when the brake oil and water content is too high, it will automatically alarm. Numerical Display of Water Content: clear LCD screen for water content value display. LCD Display with 3 Colors Backlight: the backlight color will various according to the measured content. Reliable Quality: ABS material with good impact resistant ability, fall-proof, dust-proof and water-proof. Clip Design: it allows you to clip the tester on the pocket of jeans or backpack. Specifications: Material: ABS Detecting Range: 0~4% Alarm Mode: Sound and light Auto-off: 5 minutes Power Supply: 2 * 1.5V AAA battery (NOT included) Item Size: 175 * 28 * 23mm / 6.89 * 1.10 * 0.91in Item Weight: 39g / 1.38oz Package Weight: 60g / 2.12oz Package Size: 18.3 * 4.5 * 3cm / 7.20 * 1.77 * 1.18in Package List: 1 * Tester 1 * Manual (English) Package List 1 * Tester 1 * Manual (English)