Product Overview

The 7Semi BME680 Sensor Probe, enclosed in a durable metal casing, offers a cost-effective solution for challenging environmental conditions. To safeguard the sensor, a permeable membrane covers its surface. Utilizing the I2C interface for communication, this sensor probe features the Bosch Sensortec BME680 sensor enclosed within a robust metal casing, enhancing both protection and longevity. A 4-wire cable, measuring one meter, is affixed to the probe for I2C communication and power supply (ranging from 1.7V to 3.6V). The BME680, a digital 4-in-1 sensor, employs proven sensing principles for gas, humidity, pressure, and temperature measurements.

Capable of detecting a diverse range of gases, the BME680's gas sensor assesses indoor air quality for personal well-being. Gases detectable by the BME680 encompass Volatile Organic Compounds (VOCs) found in items such as paints (including formaldehyde), lacquers, paint strippers, cleaning supplies, furnishings, office equipment, adhesives, glues, and alcohol. Due to its remarkable long-term stability and sensitivity, this sensor finds extensive applications in agriculture, soil analysis, egg incubation, HVAC systems, weather stations, test and measurement setups, automation, medical and pharmaceutical contexts, humidifiers, and more.

Featuring a Mini Round Metal Shell (MRS) type connector, the probe is equipped with a one-meter-long cable.

Key Features

Operation range (full accuracy) :
- Pressure: 300...1100 hPa
- Humidity 0…100%
- Temperature: -40…85C
Supply voltage VDD: 1.71 ... 3.6 V
Breatable metal shell
Corrosion resistance
High temperature resistance
Large air permeability, fast gas humidity flow and exchange rate, uniform divergence.
Excellent ability of anti-dust, anti-corrosion and waterproof (IP65）
Protecting PCB modules from dust, particulate pollution and oxidation of most chemicals to ensure sensors a long-term stable operation, higher reliability and long service life
Remarkable performance in harsh environments such as small space, pipe, trench, wall pass mounting, high-pressure space, vacuum chamber, test chamber, large flow mediums, high humidity area, high temperature and heat environment, hot drying process, dangerous zones, explosive environment containing explosive gas or dust, etc
150 bar anti-pressure capability
Seamless integrated, shedding-free
The stainless steel porous housing for sensor probe, have accurate pore size, uniform and even-distributed apertures.
Pore size range: 5 to 120 microns; it has good filtration, dustproof and interception effect, high filtration efficiency.
Fully calibrated
Digital output, I2C interface
Low power consumption
Excellent long term stability

Key parameters for sas sensor

Response time (T 33-63%): < 1 s (for new sensors)
Sensor-to-sensor deviation: +/- 15% +/- 15
Power consumption: < 0.1 mA in ultra-low power mode
Output data processing: direct output of IAQ: Index for Air Quality

Key parameters for humidity sensor

Response time (T 0-63%): 8 s
Accuracy tolerance: +- 3 % relative humidity
Hysteresis: <= 1.5 % relative humidity

Key parameters for pressure sensor

RMS Noise: 0.12 Pa (equiv. to 1.7 cm)
Sensitivity Error: +- 0.25 % (equiv. to 1 m at 400 m height change)
Temperature coefficient offset: +-1.3 Pa/K (equiv. to +-10.9 cm at 1C temperature change)

The BME680 sensor is an I2C probe MRS (MEMS Resistor Sensor) type sensor that is capable of measuring four different parameters: humidity, barometric pressure, temperature, and gas (VOC) levels. It is a highly accurate and low-power sensor that is suitable for a wide range of applications, including environmental monitoring, indoor air quality monitoring, and weather forecasting.

The BME680 sensor uses MEMS (Micro-Electro-Mechanical Systems) technology to measure the physical parameters of the environment. The humidity sensor uses a polymer film to measure the relative humidity of the surrounding air, while the barometric pressure sensor uses a MEMS pressure sensor to measure the atmospheric pressure. The temperature sensor uses a MEMS temperature sensor to measure the ambient temperature, and the gas sensor uses a MEMS gas sensor to measure the concentration of volatile organic compounds (VOCs) in the air.

The BME680 sensor is highly accurate, with a humidity accuracy of +-3% relative humidity, a barometric pressure accuracy of +-0.12 kPa, a temperature accuracy of +-1C, and a gas accuracy of +-0.5 IAQ index points. It is also highly reliable, with a long-term stability of +-1% relative humidity and a sensor lifetime of up to 10 years.

The BME680 sensor is also highly configurable, with a range of settings that can be adjusted to suit different applications. The sensor can be configured to operate in different modes, including forced mode, where the sensor takes a single measurement and then goes back to sleep, and continuous mode, where the sensor takes continuous measurements at a fixed rate. The sensor can also be configured to adjust the measurement rate and filter settings to optimize the trade-off between accuracy and power consumption.

Overall, the BME680 sensor is a highly versatile and powerful sensor that is capable of measuring a wide range of environmental parameters with high accuracy and reliability. Whether you're building a weather station, an indoor air quality monitor, or a smart home automation system, the BME680 sensor is a great choice for measuring humidity, barometric pressure, temperature, and gas levels in the environment.

Resources

Datasheet BME680

7Semi I2C Wire Color Code

BME680 Gas Sensor I2C Probe Applications

Product FAQ
Q: What is the common use of a Temperature, Humidity and Gas VOC Sensor?
A: Temperature and Humidity sensors are among the most commonly used environmental sensors. It is widely used to provide the actual humidity condition within air at any given point or in any given place. Such devices are commonly used in situations in which air conditions may be extreme or where air conditions need to be controlled due to varying reasons.

Q: Why is and Gas VOC, Temperature and Humidity sensors important in some industries?
A: Humidity is the presence of water within the air. Measuring humidity within the environment can be critical due to the fact that the higher the humidity, the warmer it may seem. In industries, humidity measurement is often important because it can affect the health and safety of personnel as well as the cost of the product. As a result, temperature and humidity sensors are often quite important.

Q: How do I choose a suitable and Gas VOC, Temperature and Humidity Sensor?
A: There are some important specifications you might need to consider when you choose this product. This includes: