We are offering smoke meter. “netel” make diesel smoke meter model npm - sm111b with rs232, printer & with latest modifications of oil temperature & rpm measurement as per ripple sensor. key features: * micro controller based * alphanumeric lcd display with back light for day & night operation * user friendly keyboard & display interaction * built -in 24 column printer for hard copy of the report * autozero facility *easy calibration check * can be up-graded to rpm measurement by ripple technology.