Product Description


Honeywell Microswitch

390FW04A-10 is an atom proximity sensor

Datasheet #1: 390FW04A10 PDF
Datasheet #2: 390FW04A10 PDF


Environment-proof self-contained proximity sensor enclosed in a rugged stainless steel housing, designed to meet the requirements of aerospace, ordnance, marine, mass transit and high performance industrial equipment. Operation by the Eddy Current Killed Oscillator (ECKO) principle, which is used to detect metal objects passing in front of the sensing face. Once a target metal is detected, a trigger signal is produced which is then passed through the output conditioning circuitry to give a high or low output, depending on the sensor application.


  • All Metal Sensing
  • Small housing
  • High level of electronics protection
  • Leadwire or connector termination
  • Factory mutual certified for Class 1, Division 2, Groups A,B,C,D.

Typical Applications

  • Aircraft landing gear
  • Gun turret position control
  • Door and hatch open/closed monitoring

Pricing & Availibility

Price: $1931.92

2 available to buy (in stock)