Adafruit BME688 Temperature, Humidity, Pressure and Gas Sensor - STEMMA QT

Adafruit BME688 Temperature, Humidity, Pressure and Gas Sensor - STEMMA QT

Marsoni

M251S

$28.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Adafruit BME688 Temperature, Humidity, Pressure and Gas Sensor - STEMMA QTThe Adafruit BME688 from Bosch is an all in one environmental sensor that combines temperature, humidity, barometric pressure, and VOC gas sensing in a small and efficient package. This sensor is a drop in replacement for the BME680 but adds programmable heating for controlled odor analysis using a built in MOX sensor. It offers precision measurement capabilities: 3% humidity accuracy, 1 hPa absolute barometric pressure, and 1. 0C temperature

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Seemed to work as well as or better than some more expensive catalytic converter cleaners. I put it in while at 1/3 tank and my Check Engine light went out almost immediately once I started driving. My Tundra has almost 230,000 miles and still runs great but was getting a little harder to start after I switched from full synthetic oil to conventional. I’ll never do that again and immediately switched back but the damage was done. Check engine light came on and I had to crank longer to get it started. Adding this Liquid Moly fixed both issues temporarily. I have to wonder if this was used regularly, say every 3 months, if it would clean the catalytic converter more permanently?

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Reviewed in the United States on December 29, 2025

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Jon.

Lowell, US

★★★★★ 3

Ehh??

Didn't work for my on my 17 hyundai accent with 90k on it. I poured the whole bottle in with a half tank of gas. And went for a 3 day italian tune up.... no dice.

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Reviewed in the United States on May 8, 2026

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Juan Gonzalez

West Palm Beach, US

★★★★★ 5

Works great

Follow instructions and it will work. Had a p420 code, caught it early used this. No more code and passed emissions

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Reviewed in the United States on May 10, 2026

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Matt Teed

Houston, US

★★★★★ 5

Actually works on BMW!

I purchased this after the shorter black fluted tool I bought last year failed me. This thing is way better constructed, fits perfect , and actually works to turn it after you can’t turn it by hand any further. Was able to get torqued down to 25nm no problem finally with ease!

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Reviewed in the United States on November 12, 2024

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Dak

West Palm Beach, US

★★★★★ 5

Works great

Works great

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Reviewed in the United States on May 26, 2025