Shandong Fengtu IOT Technology Co., Ltd
Sales Manager:Ms. Emily Wang
Cel,Whatsapp,Wechat:+86 15898932201
Email:info@fengtutec.com
Add:No. 155 Optoelectronic Industry Accelerator, Gaoxin District, Weifang, Shandong, China

Sales Manager:Ms. Emily Wang
Cel,Whatsapp,Wechat:+86 15898932201
Email:info@fengtutec.com
Add:No. 155 Optoelectronic Industry Accelerator, Gaoxin District, Weifang, Shandong, China

Model:FT-QT2
Brand:fengtu
1. Technical Parameters of Sulfur Dioxide Sensor
Sulfur dioxide sensor is used to monitor the concentration of sulfur dioxide and is suitable for gas concentration detection in various industrial environments and special environments.
| model | Measurement parameters | Measuring range | Accuracy | Resolution | unit | Operating temperature | Operating humidity |
| QT1 | Carbon monoxide | 0-1000PPM | ±2PPM | 1PPM | PPM | -20℃-+50℃ | 10-95%RH non-condensing |
| QT1S | 0-20PPM | ≤±5% | 0.01PPM | PPM | -20℃-+50℃ | 10-95%RH non-condensing | |
| QT2 | Sulfur dioxide | 0-20PPM | ±1PPM | 0.1PPM | PPM | -20℃-+50℃ | 10-95%RH non-condensing |
| QT2S | 0-1PPM | ≤±5% | 0.001ppm | PPM | -20℃-+50℃ | 10-95%RH non-condensing | |
| QT3 | Nitrogen dioxide | 0-20PPM | ±1PPM | 0.1PPM | PPM | -20℃-+50℃ | 10-95%RH non-condensing |
| QT3S | 0-1PPM | ≤±5% | 0.001ppm | PPM | -20℃-+50℃ | 10-95%RH non-condensing | |
| QT4 | ozone | 0-20PPM | ±1PPM | 0.1PPM | PPM | -20℃-+50℃ | 10-95%RH non-condensing |
| QT4S | 0-1PPM | ≤±5% | 0.001ppm | PPM | -20℃-+50℃ | 10-95%RH non-condensing | |
| QT5 | Oxygen content | 0~30%VOL | ±3%FS | 0.1%VOL | VOL | -20℃-+50℃ | 5-95%RH non-condensing |
| QT6 | Negative oxygen ions | 0~100,000/cm³ | ±10% | 10pcs/cm³ | Pieces/cm³ | +10℃-+70℃ | 10-70%RH without condensation |
| QT7 | Hydrogen sulfide | 0-100PPM | ±2PPM | 1PPM | PPM | -20℃-+50℃ | 10-95%RH non-condensing |
| QT8 | Methane | 0-100%LEL | ≤±3% | 1%LEL | LEL | -20℃-+50℃ | 10-95%RH non-condensing |
| QT9 | TVOC | 0-100PPM | 55±15 nA/ppm | 1PPM | PPM | -20℃-+50℃ | 10-95%RH non-condensing |
| QT10 | Ammonia | 0-100PPM | ±4PPM | 1PPM | PPM | -20℃-+50℃ | 10-95%RH non-condensing |
| QT11 | Nitric Oxide | 0-250PPM | -2~10PPM | 1PPM | PPM | -20℃-+50℃ | 10-95%RH non-condensing |
| QT12 | formaldehyde | 0-10PPM | <1PPM | 0.1PPM | PPM | -20℃-+50℃ | 10-95%RH non-condensing |
2. Sulfur dioxide sensor product dimensions

Highway environmental meteorological monitoring system has been widely used in road construction with its advantages of convenience, speed and accuracy. However, due to the special nature of highway construction conditions, the environmental meteorological observation equipment puts forward high req...
Soil moisture monitoring techniques fall into three main categories: direct measurements, matrix potential measurements and non-contact indirect measurements.Direct measurements: moisture content is calculated by weighing and drying soil samples, or measured directly using instruments such as neutro...
Atmospheric environment monitoring system is a technological platform for real-time online monitoring of regional air quality. It provides continuous 24-hour automatic monitoring of multiple parameters, including PM2.5, PM10, CO, NO2, SO2, O3, wind speed, and temperature....
Soil moisture is the water in the soil. Quick and accurate measurement of soil moisture is important for farm management. Since the middle of the last century, people have been using a variety of methods to measure soil moisture, such as the drying method, the dielectric class method, the neutron me...