Universal Enterprises ADM4201 Automotive Digital Multimeter Accurate RPM measurements for 2- and 4-stroke automotive engines with 1 to 8 cylinders using the inductive pickup MS-Pulse width function to test on-time of both PFI type and TBI type fuel injectors Duty cycle and direct DWELL reading 4 steps adjustable triggers on 1 to 8 cylinders Temperature measurement up to 2,498 degree F or 1,370 degree C