Rheintacho Messtechnik GmbH, Freiburg, Germany, offers the HDD range of rotational speed sensors for heavy-duty applications. The sensors weigh 150 g (depending on specifications), use differential Hall sensors, enable a large air gap between the sensor tip and gearwheel, and have PNP/NPN or digital output, a dual-channel design, flange housing with double screw assembly, and an optional insertion depth of 32 or 16 mm. Digital signal output is optional. Other features include special cable waterproofing, high electromagnetic compatibility, and high pressure resistance.
Rheintacho Messtechnik GmbH