SmartElex Environmental Sensor BME688


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SKU: 1848637


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In stock

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Brand: SmartElex
Category: Weather Sensors
Tags: SmartElex Sensor Modules

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The SmartElex BME688 Environmental Sensor is a breakout that combines a gas scanning sensor with temperature, humidity, and barometric pressure sensing for a complete environmental sensor in a single package. The gas sensor on the BME688 can detect a wide variety of volatile organic compounds (VOCs), volatile sulfur compounds (VSCs), and other gases such as carbon monoxide and hydrogen in the part per billion (ppb) range. Combine that with precise temperature, humidity, and barometric pressure, and the BME688 can work as a completely standalone environmental sensor all in a 1in. x 1in. breakout!

The sensor communicates via either I2C or SPI. We’ve broken out the I2C pins to our Molex PicoBlade connector so no soldering is required to connect it to the rest of your system, but if you would prefer, both the I2C and SPI pins are also broken out to standard 0.1-in.-spaced pins.

Note: In order to avoid contamination of its gas scanning capabilities, DO NOT touch the metallic casing of the BME688 sensor. Please, handle this with care.


  1. BME688 – Gas scanning sensor with temperature, humidity, and barometric pressure sensor in a single package.
  2. I2C or SPI communication
  3. Uses I2C interface
    • I2C Addresses: 0x76 (Default) or 0x77
    • 2x Molex PicoBlade Connectors
  4. Operating voltage range
    • 1.71V – 3.6V
    • Typically?3.3V
  5. Relative humidity
    • Operating range: 0% to 100%
    • Absolute Accuracy:±3%RH
    • Resolution: ±0.008%RH
  6. Temperature
    • Operating range: -40ºC to +85 ºC
    • Absolute Accuracy: 1.0ºC
    • Resolution: 0.01ºC
  7. Pressure
    • Operating range: 300hPa – 1100hPa
    • Absolute accuracy: 60Pa (0ºC to 65ºC)
    • Resolution: 0.18PA, highest oversampling
  8. Gas
    • F1 score for HS scanning: 0.92
    • Standard scan speed: 10.8 sec/scan
    • Sensor-to-sensor deviation: 15%  15
  9. Typical current consumption (varies based on mode and active sensor)
    • 2.1 A to 18mA
    • 0.15 A (sleep mode)
    • 3.9 mA in standard gas scan mode

Package Includes:

1 x SmartElex Environmental Sensor BME688

SKU: 1848637 Category: Tag:


Operating Voltage (V)

1.71 to 3.6

Operating Temperature (°C)

-40 to 85

Working Pressure Range

300hPa – 1100hPa

Length (mm):


Width (mm):


Weight (g):


Shipping Weight 0.01 kg
Shipping Dimensions 4 × 4 × 1 cm
1 Year Warranty

This item is covered with a supplier warranty of 1 year from the time of delivery against manufacturing defects only. In case of manufacturing defects or issues, we will replace the part after warranty confirmation by our technical team, but we won’t offer refunds or replace the entire product.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: India