Universal Gasoline Inductive Digital Display Engine Tachometers Waterproof Long-lasting Motorcycle Gauge Speed Chainsaw Tachometer Feature: 1. Long-lasting power: low voltage design, built-in battery, safe and reliable, long service life of 2-3 years. 2. Wide application: common car, micro car, off-road car, common racing car, micro racing car, off-road racing car, you can consider it. 3. Waterproof design, ip68 waterproof grade. 4. Easy to install: inductive design, just touch the motor to detect, paste or fix screws Specification: Gross Weight: 60g Waterproof Rating: Ip68 Material: ABS Size: 53.5mm*36.2mm*14.6mm Accuracy: 0.1 Hours Time Range: 9999.9 Hours: Battery Life: 2-3 Years Model: DJ101, DJ102 Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 X Tachometer