UART Output Electrochemical Gas Sensor For Air Quality
KOX501 O2 Sensor
Product Description
KOX501 electrochemical gas sensor module uses electrochemical principle to detect the concentration of toxic and harmful gases such as CO, H2S, NO2 in the environment. The module uses RoHS electrode electrochemical sensor as sensing element (the specific technical parameters of the sensor are detailed in the data manual), and realizes the gas concentration detection under the control of sampling circuit, which has good stability and selectivity. This module adopts four-wire connection with the receiving terminal, and outputs the gas concentration signal through the UART bus, which is convenient for the user.
Fig. 1. KOX501 RoHS electrochemical sensor
Features
Sensors are made of lead-free materials, in full compliance with RoHS standards;
• The service life of up to 5 years is much higher than the 2-year service life of traditional lead-based oxygen sensors;
• Insensitive to carbon dioxide, the output signal accuracy is not affected by carbon dioxide;
• Operates well at -40℃, lower than conventional lead-based oxygen sensors Limit operating temperature;
• Highly resistant to changes in environmental factors, temperature, humidity or pressure Mutation has little effect on it.
• Excellent linearity, stability and reproducibility in long term applications with excellent performance consistency.
Application
- Air quality monitoring
- Smart Buildings
- Granary air detection
KOX501 Size Structure Chart
Sensor size (unit mm)
Technical Specification
| Model | KOX501 |
|
Detecting gas |
CO, H2S, NO2 and other toxic and harmful gases |
| Detection Principle | Electrochemistry |
| Measuring range | See the Data Manual for details |
| Resolution | See the Data Manual for details |
| Observational error | <± 5% FS |
| Operating voltage | VDC |
| Operating Current | ≤2mA@+ 5.0 VDC; |
| Output mode | UART (+ 3.3 v TTL) |
| Operating temperature | -20℃~+ 50℃ |
| Working humidity | (0% ~ 90%) RH (no condensation) |
| Working pressure | Atmosphere ± 10% |
| Storage temperature | -20℃ ~+ 60℃ |
| Contour Dimension | φ22x25mm |
| Weight | 10g |
Ordering Information
| Ordering Information Selection Table | |||||
| Product | Range | Accuracy | Signal output | ||
| KOX501 | O2 Gas Sensor | ||||
| 0-25% | 0-25%VOL | ||||
| ±5% | ±5%FS | ||||
| 4-20mA | 4-20mA output without RS485 output | ||||
| RS485 | RS485 output without 4-20mA output (Default) | ||||
| 4-20RS485 | 4-20mA output with RS485 output | ||||
| Modbus-RTU | protocol of RS485 output is Modbus-RTU (Default) | ||||
| Modbus-ASC | protocol of RS485 output is Modbus-RTU | ||||
| Customized | Support OEM | ||||
| KOX501 | 0-25% | ±5% | RS485 | Modbus-RTU | |
Contact Us
Website www.kacise.com
Phone +86-17719566736
Email sales@kacise.com
Location Tangyan South Road, High-tech Zone, Xi'an City, Shaanxi Province, China
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.




