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The  SPG40 VOC Sensor is a compact, low-power VOC sensor designed for real-time detection of volatile organic compounds in indoor environments. Built with advanced metal-oxide sensing technology, it offers high sensitivity, fast response, and long-term stability, making it ideal for air quality monitoring, pollution control, and environmental management. Seamlessly integrating with IoT systems, BMS automation, and smart building solutions, the SPG40 is perfect for homes, offices, schools, air purifiers, and HVAC systems. Certified to ISO9001 and CE standards, this sensor ensures government compliance while enabling healthier, cleaner indoor air.

The  MH-Z19E NDIR CO₂ Module is a highly reliable non-dispersive infrared (NDIR) carbon dioxide sensor, designed for real-time CO₂ monitoring in indoor and outdoor environments. Offering high accuracy, fast response, and long-term stability, this sensor is ideal for air quality monitoring, pollution control, and environmental management. It seamlessly integrates with IoT-enabled systems, BMS automation, and smart city solutions, making it perfect for homes, schools, offices, laboratories, industrial plants, and HVAC applications. Certified with ISO9001 and CE standards, the MH-Z19E helps organizations achieve government compliance while ensuring safer, healthier air quality.

Carbon Monoxide Detector is a reliable safety device designed to detect the presence of carbon monoxide (CO) gas and provide early warning to prevent health risks and accidents. It continuously monitors CO levels and triggers audible and visual alarms when gas concentration exceeds safe limits. The detector is built with a high-sensitivity sensor that ensures fast response, accurate detection, and stable performance.

This CO detector is suitable for homes, offices, hotels, hospitals, parking areas, boiler rooms, and industrial facilities. Its compact and durable design allows easy wall or ceiling mounting, while low power consumption ensures long operational life. The device is ideal for enhancing indoor air safety and protecting people from carbon monoxide poisoning, making it an essential component of modern gas safety and air quality monitoring systems.
Product Key Features

• Accurate detection of Carbon Monoxide (CO) gas
• High sensitivity sensor for early warning and safety
• Fast response time with reliable performance
• Audible and visual alarm for immediate alerts
• Designed for continuous indoor monitoring
• Low power consumption and long sensor life
• Compact and user-friendly design
• Suitable for residential, commercial & industrial use

Features:

1. Using imported high-precision electrochemical principles sensor

2. USB interface high speed data transmission, can be downloaded print data (optional)

3. LCD dot matrix display technology, can display the type of gas, the gas unit, gas concentration values, measured maximum, local time, ambient temperature, etc.

4. Support Chinese and English operation interface, easy to switch

5. Gas concentration unit PPM, mg/m3 can quickly switch display

6. Built-in micro sampling pump, the pump suction size ten stalls adjustable

7. Explosion-proof certification, proof grade: Exia CT4

Electrochemical GasDetection ModuleUser’s Manual V3.1（Model：ZE03）Issue Date 2023-03-24Zhengzhou Winsen Electronics Technology Co., Ltd

StatementThis manual copyright belongs to Zhengzhou Winsen Electronics Technology Co., LTD. Without the written permission, any part of this manual shall not be copied, translated, stored in database or retrieval system, also can’t spread through electronic, copying, record ways.Thanks for purchasing our product. In order to let customers use it better and reduce the faults caused by misuse, please read the manual carefully and operate it correctly in accordance with the instructions. If users disobey the terms or remove, disassemble, change the components inside of the sensor, we shall not be responsible for the loss.The specific such as color, appearance, sizes …etc., please in kind prevail.We are devoting ourselves to products development and technical innovation, so we reserve the right to improve the products without notice. Please confirm it is the valid version before using this manual. At the same time, users’ comments on optimized using way are welcome.Please keep the manual properly, in order to get help if you have questions during the usage in the future.