DS-HCHO-20

Product Introduction

The DS-HCHO-20 series is a digital dual-mode formaldehyde sensor that integrates both electrochemical and semiconductor sensing principles. The electrochemical module serves as the primary sensing element, utilizing advanced electrolyte technology, high-performance analog circuits, and a data processing unit with extensive experience-based algorithms. The semiconductor sub-module enhances the overall response speed and provides supplementary signals. Data from the main module is corrected using corresponding algorithms, and the sensor is compatible with TVOC calibration curves, enabling simultaneous output of TVOC values.

Features

• Electrochemical and semiconductor dual-mode sensing principles
• Real-time response
• Dual-mode cross-checking for accurate data
• Simultaneous TVOC output
• High resolution of 0.01 mg/m3 for formaldehyde
• Fast response time of less than 2 seconds
• Low power consumption with standby current below 1 mA
• Wide operating temperature and humidity ranges
• Long MTTF of at least 3 years
• UART serial interface with TTL level

Applications

• Indoor air quality monitoring
• Smart home systems
• HVAC control systems
• Portable air quality detectors
• Industrial safety monitoring
• Environmental monitoring stations

Specifications Table

To learn more, please download the PDF.