









🌍 Breathe smarter, live better — the all-in-one sensor your space deserves!
The BME680 Sensor CJMCU-680 is a premium, compact 4-in-1 environmental sensor module that accurately measures temperature, humidity, air pressure, and volatile organic compounds (VOC). With a fast 1-second response time and ±3% humidity accuracy, it’s ideal for indoor air quality monitoring, HVAC systems, and industrial applications. Its lightweight design and customizable sensor activation make it a versatile choice for professionals seeking precise, real-time environmental data.






| ASIN | B07K1CGQTJ |
| Best Sellers Rank | #251,994 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #667 in Temperature Probes & Sensors |
| Brand Name | Hilitand |
| Customer Reviews | 4.3 4.3 out of 5 stars (63) |
| Item Dimensions | 1.97 x 1.18 x 0.39 inches |
| Item Weight | 0.01 Kilograms |
| Manufacturer | Hilitand |
| Measurement Accuracy | +/- 3% relative humidity |
| Model | CJMCU-680 BME680 |
| Mounting Type | Surface Mount |
| Output Type | Digital |
| Response Time | 1 seconds |
| Specific Uses For Product | indoor air quality monitoring, HVAC systems, weather monitoring, industrial process control |
| Style Name | Modern |
| UPC | 757686808108 757686756355 |
| Upper Temperature Rating | 85 Degrees Celsius |
B**S
Address is 0x77, decent device
Works fine with i2c, didn't try with SPI. i2c address is actually 0x77, unless you pull SDO down to GND and you'll get 0x76. This messed me up a bit, but it worked perfectly in ESPHome after I fixed that along with the bme68x_bsec2_i2c platform.
C**P
Disappointing.
I had high hopes of this being a replacement for another BME680 I have. There were 2 issues with this device: 1) It arrived damaged due to poor shipping materials (the damage was mainly the pins to be soldered to the device). 2) Despite the damage I thought I would give it a try anyway. After a couple of weeks it started to fail intermittently. It is too late to return but perhaps the next prospective buyer can heed this warning.
L**H
Tried two.. First did work over night. Did not over volt it either.
Send both back and bought elsewhere. All good now. These did not work from this vendor. Also, I bought the other ones after I got over my AQ phase, and they were a good bet cheaper.
J**S
Arrived packaged in a static plastic bag, not super protected. You have to solder the pins onto the sensor. Worked straight out of the box, as advertised. Tested them out and was so happy I bought a second one.
P**N
Mit der BME680-Sensorplatine habe ich endlich ein umfassendes Bild von der Luftqualität in meiner Wohnung. Dank der Bosch-Library lassen sich die Messwerte super auswerten. Ein Muss für alle, die Wert auf ein gesundes Wohnumfeld legen!
W**Y
Temperature and altitude readings are way off. Not sure the sensor is reliable. This may be normal, but I can’t say for certain.
R**R
Provides atmospheric pressure, temperature, humidity and gas resistance. Works very well with ESP32 microcontrollers on Home Assistant.
B**E
funziona benissimo ed è uno dei migliori sensori i2C del genere.
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