Are you looking for a professional, practical and reasonably priced gasoline engine timer? Our products will be a good choice for you. They are made with craftsmanship and scientific design. They have excellent durability and practicality, which can help you complete the counting work and facilitate your reading. This is a great gasoline engine timer, which will better meet your needs. Features -Color: Black. -Material: ABS. -Size: About 7.35X4.67X2.00cm/2.89X1.84X0.79inch -The timing range is: 0.1-9999.9 hours. -Support speeds range: 15300 . -Voltage: 3 (V). -Power: 0.002-0.03 (W). -Good durability, this inductive tachometer chronograph is powered by a replaceable battery, and the battery has a long standby . -It is suitable for most gasoline engines with spark plugs and has a wide range of applications. -Inductive design, only need to tie the connecting wire to the spark plug to work. - function of setting the interval time is convenient for you to watch the comparison data at any time. -This is a great gasoline engine timer that will you . Package list: 1 x timer