DigiGas-VOC TVOC eCO2 and Air Quality Index Sensor, SDI12, RS485 Interface

Time:2025/01/08 View:822 Category:Gas Concentration Category:Measurements Category:Products Category:SDI-12 Products Category:SDI-12 Sensors

　　DigiGas-VOC is a multi-gas sensor, based on metal oxide (MOX) technology, The sensor can detect a wide range of volatile organic compounds (VOCs) including ethanol, toluene, hydrogen and oxidizing gases with superior sensitivity. It also supports intelligent algorithms to calculate TVOC- equivalents and CO2-equivalents, various air quality indices(AQIs) and perform humidity and temperature compensation. It’s applicable for Building Automation, Appliances & Consumer Applications, laboratory application etc.

Resources
User Manual	DigiGas-VOC TVOC eCO2 and Air Quality Index Sensor User Manual (RS485, SDI-12 Interface)
Software (RS485 Interface)	SensorOneSet-EN
Software (SDI-12 Interface)	SensorOneSetSDI12-EN

　　The SDI-12 output provides universal compatibility with any SDI-12-enabled data logger and low power applications, or use a RS485 physical interface for applications that require long cable runs or many sensors.

Features

■ Integrated with ENS161 multi-gas sensor

■ eTVOC, eCO2 and multiple AQI (Air Quality Index) outputs

■ Calibrated output with temperature and humidity compensation

■ Integrated temperature, humidity, dew point measurement

■ Digital Output SDI-12 or RS485 with built-in surge protection

■ Small size with high accuracy with excellent stability

■ Wall mounting installation

■ Reverse power protection and Built-in TVS/ESD protection

■ Excellent price-performance ratio

Applications

■ Building Automation HVAC, Indoor air quality and Demand-controlled ventilation

■ Home appliances including cooker hoods and air cleaners and purifiers

■ Laboratory applications

Specification
Output Interface	Optional: SDI-12, V1.3 Optional: RS485, Modbus-RTU
Power Supply	5-28V DC
Power Consumption	SDI-12 Interface: Quiescent current (1 sample/1 second): <4mA @12V DC Quiescent current (1 sample/1 minute): <500uA @12V DC Quiescent current (1 sample/5 minute): <400uA @12V DC Max. current during measurement: <15mA@12VDC RS485 Interface: Quiescent current (1 sample/1 second): <7mA @12V DC Quiescent current (1 sample/1 minute): <4mA @12V DC Quiescent current (1 sample/5 minute): <3.5mA @12V DC Max. current during measurement: <15mA@12VDC
eTVOC Accuracy	Equivalent Total Volatile Organic Compounds values Range: 0-65000 ppb;? Resolution：1 ppb Total typical accuracy: Please refer to “Accuracy” chapter.
eCO2 Accuracy	Equivalent CO2 values for compatibility with HVAC standards Range: 400-65000 ppm? Resolution：1 ppm Total typical accuracy: Please refer to “Accuracy” chapter.
AQI-U	Indoor air quality levels by the German Federal Environmental Agency (UBA, 2007) Range: 1-5;? Resolution：1
AQI-S	Relative Air Quality Index Range: 0-500;? Resolution：1
Temperature Accuracy	Range: -40～125℃, Resolution: 0.01℃ Typical Accuracy: +/-0.2℃ Note: The long-term operating temperature range is -40~80 ° C
Humidity Accuracy	Range: 0-100%, Resolution: 0.01% Typical Accuracy: ±1.8% RH
Operating	Temperature: -40～80℃, Humidity: 0-95%? non-condensing
IP Ratings	IP50
Installation	Wall mounting
Cable Length	2 meters or Customize
Dimension	Sensor body: 11125.5mm (LengthDiameter)

Ordering Information
Parameters	Code	Comments
Code 1:Product Series	DigiGas-VOC	DigiGas-VOC, eTVOC, eCO2, AQI-U, AQI-S, Air temperature, humidity sensor
Code 2: Range and Accuracy	A	Default
Code 3: Power Supply	A X	5-28V DC Customize
Code 4: Output Interface	A B	RS485(Modbus-RTU) SDI-12
Code 5: Connector	B C	Cold pressed terminal Stripped & tinned lead wires
Code 8: Cable Length	002 XXX	2 Meters Customize, XXX is required cable length (Unit: meter), Max 5 meters.
Ordering Code Example: DigiGas-VOC-A A A B 002 Product Series: DigiGas-VOC, eTVOC, eCO2, AQI-U, AQI-S, Air temperature, humidity sensor; Range and Accuracy: Default; Power Supply: 5-28V DC Output Interface: RS485(Modbus-RTU); Connector: Cold pressed terminal; Cable Length: 2 Meters