The HF speed sensors with amplifier DSH 1840.01 SHV (Part no. 374Z-04025),
DSH 1840.01 S1HV (Part no. 374Z-05305) and DSH 1840.05 SHV (Part no. 374Z-05494) are suitable for use with a pole wheel to generate speed proportional frequency signals. They exhibit dynamic behavior, whereby pulse generation down to 0.1 Hz is guaranteed.