EmbeddedRelated.com
    Parts   Sensors  Gas & Air Quality    Sensirion Environmental Sensors Family    SEN55-SDN-T    SEN55-SDN-T
SEN55-SDN-T

SENSEN55-SDN-T

Sensirion AG
Humidity, NOx, Particulate Matter, Temperature, VOC Sensor I2C
Active2,130 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The SEN55-SDN-T is an all-in-one environmental sensor node that measures particulate matter, volatile organic compounds (VOCs), nitrogen oxides (NOx), humidity, and temperature. Designed for air quality monitoring applications, it integrates multiple sensing technologies into a single compact module with a digital I2C interface.

Why Choose This Part

The module features a fully calibrated digital output and an integrated fan with an auto-cleaning routine to ensure long-term stability and reduced maintenance. It also includes Sensirion's STAR engine, which accelerates temperature and humidity response times by compensating for self-heating and environmental lag.

Applications

HVAC Systems
Integrating into smart heating and cooling systems to adjust ventilation based on real-time indoor air quality and pollutant levels.
Air Purifiers
Providing high-precision feedback for automated fan speed control to remove PM2.5, VOCs, and NOx efficiently.
Indoor Air Quality Monitors
Serving as the primary sensor suite for consumer or industrial monitoring devices tracking health-related environmental metrics.
Building Automation
Enabling demand-controlled ventilation in smart buildings to optimize energy usage while maintaining occupant comfort.

Key Specifications

Type Humidity, NOx, Particulate Matter, Temperature, VOC
Output I2C
Accuracy +/-4.5% RH
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature -10degC ~ 50degC

Getting Started

Connect the sensor via its 6-pin interface to an I2C-capable microcontroller like an ESP32 or STM32. For rapid prototyping, use the SEK-SEN5x evaluation kit which allows for direct connection to a PC via the SEK-SensorBridge and Sensirion ControlCenter software.

Also Consider

SPS30 SENSensirion AG - A dedicated particulate matter sensor if gas and RHT sensing are already handled by other components.

Categories

Sensors > Gas & Air Quality