Description SNDH-T4L-G01 Honeywell is a dual differential hall sensor that provides speed and direction information using a quadrature output with signals 90 phase shifted from each other. Target direction is determined by output lead/lag phase shifting. This product is designed for applications where extremely high resolution is required at wide frequency ranges, 1 kHz to 15 kHz, and large air gaps. BiCMOS (bipolar complementary metal-oxide-semiconductor) Hall-effect technology, using advanced digital signal processing for dynamic off-set cancellation, provides enhanced air gap performance and phase shift accuracy over most conditions. Unique patented (pending) IC (integrated circuit) packaging provides output phase shift tolerancing with enhanced accuracy. The robust package is automotive under-the-hood grade for most environmental conditions, as well as EMI (electromagnetic interference), hardened. Multiple connection options, including wire harness and integral connector versions using AMP super seal or AMP Jr. Timer connectors, are available. Package design includes an o-ring seal for pressure applications and a fixed mounting flange.   FEATURES of Honeywell SNDH-T4L-G01 Speed and Direction Sensor Hall-effect magnetic sensing technology Dual differential Hall provides enhanced target resolution Advanced performance dynamic offset self-calibration Air gap up to 2 mm [0.08 in] Near zero speed Automotive under-the-hood packaging integrity EMI hardened High frequency switching capability (1 Hz to 15 kHz) -40 ºC to 150 ºC [-40 °F to 302 °F] continuous operating temperature Multiple connector options Short circuit protection Reverse voltage protection Open collector output Low jitter output O-ring seal   POTENTIAL APPLICATIONS Steering position Tachometers/counters Encoders Speed and direction of gears and shafts in transmissions, hydraulic motors, pumps, and gearboxes.