The sealey ta102 is an 11-function digital automotive multimeter designed for professional vehicle diagnostics and electrical testing in workshop environments. Built to withstand demanding workshop conditions, this automotive-specific meter combines essential electrical testing capabilities with specialist functions for engine diagnostics, making it an ideal tool for mechanics, auto electricians and vehicle technicians. Housed in a durable hi-impact case with an integral stand, the ta102 features a large high-contrast lcd display with 34mm high digits for easy reading in varying workshop lighting conditions. The meter provides comprehensive electrical testing across dc voltage ranges up to 1000v, ac voltage up to 750v, and dc current measurement up to 10a, alongside resistance testing from 200o to 20mo. What distinguishes this automotive multimeter from standard electrical testers are its engine-specific diagnostic functions. The built-in tachometer measures engine rpm across 3, 4, 5, 6 and 8-cylinder configurations 180-10000rpm , whilst the dwell angle function provides timing diagnostics for multiple cylinder configurations. Additional capabilities include frequency measurement to 20khz, temperature measurement from -20 c to 750 c using the included k-type thermocouple, diode checking and transistor testing. Practical features enhance usability during vehicle diagnostics, including data-hold functionality to capture readings, auto-zeroing for accuracy, auto-polarity det...