The Heathkit IS-29 automotive tune-up meter offers precise engine diagnostics in a compact, durable unit. Features include voltage, RPM, and dwell measurement capabilities, housed in its original protective case for long-lasting performance. • Measures DC volts, RPM, and dwell • Suitable for 6- and 12-volt systems • Features adjustable cylinder settings • Includes original instructions • Compact, portable design with handle Exterior shows minor scuffs and wear.
