821810Hz~10MHz(SY-8218) 10Hz~1MHz(SY-8219) Square wave: 10Hz~1MHz(Duty50) Magnetic field snal detection: Voltage drop method of both ends of the non-inductive resistor MaximumATF Multivehicle JWS 3309 8218. Attention! The packaging is illustrative and may differ from its actual appearance. For the latest list of specifications, see the text section. A universal all-season hh-viscosity