7Semi BME688 Environmental Sensor I2C Probe - Plastic (Gas, Pressure, Temperature & Humidity Sensor)

The 7Semi BME688 Environmental Sensor I²C Probe is a compact 4-in-1 environmental sensing solution designed to measure temperature, relative humidity, barometric pressure, and gas/air-quality parameters. Built around the Bosch Sensortec BME688, it combines multiple environmental measurements in a single remote probe, making it suitable for indoor air-quality monitoring, HVAC systems, smart buildings, IoT devices, environmental monitoring, and automation applications.

The probe communicates through a digital I²C interface and provides temperature, humidity, pressure, and gas-response data. The BME688 can detect changes associated with VOCs and other gases, while compatible Bosch software enables advanced outputs such as IAQ, bVOC-equivalent, CO₂-equivalent, and application-specific gas analysis.

The sensing assembly features a ventilated plastic sensing cap that allow ambient air to reach the sensor, while the probe body provides mechanical protection to the internal sensing assembly. Its 1 m cable allows the sensing point to be positioned away from the host electronics, providing a practical solution for long-term environmental and air-quality monitoring.

Features

• 4-in-1 Environmental Sensing: Combines temperature, relative humidity, barometric pressure, and gas/air-quality sensing in a single compact probe.

• High-Accuracy Temperature Measurement: Provides reliable temperature monitoring with ±0.5°C accuracy from 0°C to +65°C.

• Humidity Measurement: Measures 0–100% RH with ±3% RH accuracy for environmental and indoor climate monitoring.

• Barometric Pressure Measurement: Supports a wide 300–1100 hPa pressure measurement range.

• Gas & VOC Sensing: Detects changes associated with VOCs and other gases, enabling indoor air-quality and environmental monitoring applications.

• Advanced Air Quality Analysis: Supports processed outputs including IAQ, bVOC-equivalent, and CO₂-equivalent when used with compatible Bosch BSEC software.

• Digital I²C Interface: Provides direct digital communication for straightforward integration with microcontrollers, data loggers, and embedded monitoring systems. Probe uses I²C address 0x76.

• Configurable Measurement Modes: Supports configurable measurement modes, oversampling, and filtering to balance measurement performance, response time, and power consumption.

• Low-Power Operation: Supports energy-efficient environmental monitoring for continuously powered and low-power embedded applications.

• Ventilated Probe Housing: Features a ventilated plastic sensing cap that allows ambient air to reach the sensing element for effective environmental and gas monitoring.

• Remote Probe Design: Features a 1 m cable for flexible positioning of the sensing point away from the host electronics.

Resources

BME688 Datasheet

BME68X Arduino Library