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Bosch Premium Thimble Type Sensors utilize an electrical heating element inside the thimble-shaped end to bring the sensor up to operating temperature in less than a minute. The patented thimble ceramic element featuring the Bosch patented Platinum Power Grid and the patented Bosch Double Layer Protection System optimize sensing, peak performance, and maximum service life.
Protection tube ensures 100% accurate sensor performance
Double laser-welded stainless steel body is totally submersible to seal tight and protect against contamination for long life
Fast-acting heater optimizes sensor operation (on3- and 4- wire sensors only)
Coated threads for easy installation


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