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 Bosch Oxygen Sensor 0 258 005 703 Common Features:
Stainless steel wire - for resistance to corrosion and thermal stress.
Gold plated terminals - on signal and reference connector pins, giving superior contact for minute voltage/current signals.
Double laser welded sensor body to avoid moisture ingress to sensor element/heater.
Every sensor undergoes functional quality test at 1000°C.
Ceramic thimble is pressure tested to 420 bar to ensure integrity.
Every sensor measuring element undergoes “gas permeation” testing during manufacture.

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