DGS4

Easily add gas sensing to your IoT application with the DGS4 89x-Series I2C Gas Sensor: small, low-profile, factory calibrated sensors with an I2C interface for easy integration into wireless, portable, and other IoT sensor solutions. 100% factory calibrated gas concentration with EEPROM-stored calibration coefficients. High performance electrochemical gas sensors with integrated temperature and relative humidity sensors. Low-profile mezzanine connector. Accurate, linear, and fast response. Multiplex 89x-Series sensors for a custom array. Open-source firmware for rapid development. Long life (10+ years). RoHS & REACH compliant. Available in two package sizes: the 891-Series (13 x 19 mm) is ideal for space-constrained applications like wearables and indoor IoT devices; the 895-Series (18 x 24 mm) is ideal for industrial and outdoor air quality applications. KEY FEATURES • 100% factory calibrated with EEPROM-stored coefficients • I2C interface for simple digital integration • Integrated temperature and relative humidity sensors • Low-profile mezzanine connector • Multiplex 89x-Series sensors for a custom array • Open-source firmware for rapid development • RoHS & REACH compliant MEASUREMENT PERFORMANCE (25 °C, 50% RH, 1 atm) • Measurement accuracy ±15% • Repeatability < ±3% or resolution in ppm, whichever is greater • Response time under 15 seconds • Power consumption from 50 µW • Expected operating life over 5 years (10 years at 25 ±10 °C, 60 ±30% RH) • Operating temperature -20 to 40 °C • Operating humidity 15 to 95% RH ELECTRICAL • Supply voltage 2.7 to 5.25 V (3.3 V typical) • Supply current 15 µA typical at 3.3 V idle • I2C interface voltage referenced to V+ COMMON APPLICATIONS • Indoor and outdoor air quality • Safety and emissions monitoring • Early fire detection • Health and wellness • Food and agriculture • Air purification and sterilization control