Arhan Technologies supplies Hand-held digital Tachometer manufactured by Oppama Industry Co Ltd, Japan.The Engine hour meters to measure engine rpm, total cumulative operation time, max RPM are also provided by the company along with tachometers in PET 1000, PET 1100 and DET-610 hand-held type models. The company can also supply digital tachometer models ET-302, PET-2000DX, PET-2100DX and PET-3000 in mount type. These hand-held tachometers brings the engines closer to the machine and measures RPM of engines. The user can select models based on number of cylinders of the engine. The Oppama tachometers come with technical specifications of having an advantage of multifunction and certain salient features like measuring engine RPM, max RPM memories, stopwatch, hour meter, over-run alarm, automatic power on-off switch, backlight and engine mount brackets. For applications such as two stroke ranging from 1 to 6 cylinders and 4-stroke engines ranging from 1 to 6 and 8 to 12 cylinders these tachometers are the perfect choice.