Aftermarket 1GT101DC
Replaces Honeywell 
HALL EFFECT MAGNETIC SENSOR,
Supply Voltage DC Min:  4.5V, Supply Voltage DC Max:24V,
Sensor Terminals: Wire Leads,
Sensor Housing: Flange Mount,
Output Configuration: Sink,
Output Voltage Min: -,
Switching Speed:15 s,
Supply Current:20mA ,
RoHS Compliant: Yes