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7Semi CO₂, Temperature & Humidity Sensor Probe – 3-in-1 Air Quality Monitoring Module
The 7Semi CO₂, Temperature & Humidity Probe is a compact and easy-to-use environmental sensing module designed for accurate indoor air quality monitoring. It combines three important measurements—carbon dioxide levels, temperature, and humidity—into a single reliable probe, making it perfect for hobby projects, IoT systems, and smart automation setups.
This probe comes factory calibrated, so you can start using it directly without complex setup. With its simple I²C interface and low power modes, it works smoothly with popular platforms like Arduino, ESP32, STM32, and Raspberry Pi. It delivers stable and consistent readings, making it ideal for both beginners and advanced users.
Features
- 3-in-1 sensing – CO₂, temperature and humidity in single module
- Accurate CO₂ measurement for indoor air monitoring
- Factory calibrated output – ready to use directly
- I²C interface for easy microcontroller connection
- Low power modes – suitable for battery projects
- Compact and lightweight probe design
- Stable readings with built-in compensation
- Supports continuous, single-shot and sleep operation modes
- Easy integration in IoT and embedded systems
Specifications
- Supply Voltage: 3.3V
- Interfaces: I²C (Standard, Fast, Fast-Mode Plus)
- CO₂ Measurement Range: 400 – 5,000 ppm (extended up to 32,000 ppm)
- CO₂ Accuracy (400–5000 ppm): ±(100 ppm + 10% of reading)
- Resolution (CO₂): 1 ppm
- Temperature Accuracy: ±0.1 °C (0–65 °C)
- Humidity Accuracy: ±1.0 %RH (0–100 %RH)
- Operating Temperature: 10 °C – 40 °C (recommended for CO₂)
- Current Consumption: Current Consumption → 950 µA (continuous) / 100 µA (single-shot) / 1 µA (sleep)
- Microcontrollers compatible: Ardiuno, ESP32, ESP8266, STM32, Raspberry Pi, Arduino Nano 33 IoT, and nRF52-based boards.
Package Includes
- 1x 7Semi CO₂, Temperature & Humidity Sensor Probe – 3-in-1 Air Quality Monitoring Module
Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)
