ZD401-VOC PID Photoionization VOC Module

This product is used for atmospheric environment detection and can replace the conventional electrochemical market Atmospheric detection module.
The module combines mature gas sensors with a high-performance processor. It transmits the sensor’s concentration data to the host computer via the UART interface using the Modbus protocol, and also offers an optional linear voltage signal. Both the digital and analog voltage signals are calibrated.

Working Voltage 3.6–5.5 V DC
Working Current < 50 mA (PID)
Measuring Range Set at the factory, subject to actual configuration

Product Introduction

This product is used for atmospheric environment detection and can replace the conventional electrochemical market Atmospheric detection module. Widely used in chemical plants, schools, and special fields Equal trace atmospheric concentration detection. Each module has a UART interface, availableTo be calibrated separately.

Product Features

Low-Power Consumption
High Sensitivity
Anti-Interference
High-Precision
Provide Uart And Analog Voltage Signal Output Methods

Application

  • Urban Pipe Gallery
  • Petrochemical Industry
  • Industrial Environment
  • Environmental Protection Field

Technical Specifications

Working Voltage3.6–5.5 V DC
Working Current< 50 mA (PID)
Measuring RangeSet at the factory, subject to actual configuration
Output SignalStandard: UART (digital), 3.3 V level
Optional: 0.4–2 V DC analog voltage, PWM, I²C
Resolution1% FS
Preheating Time0 s
Response TimeT90 < 30 s
Accuracy±5% FS

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