SenseCAP CO2 Sensor

Product Description
This is a digital CO2 concentration sensor based on NDIR (nondispersive infrared), which can continuously collect and calculate the CO2 concentration in the air per unit volume and output in the form of a universal interface. It's designed to adopt PTFE film combined with a protective enclosure, improving its breathable performance. It is more accurate, stable, reliable, low-power consumption, and user-friendly. It compacts in size and can be easily integrated into various application scenarios.
This digital NDIR CO2 concentration sensor supports MODBUS RS485 serial communications, SDI-12 communication protocols, and is compatible with the wide power supply voltage of 5-16V. It has a built-in calibration functionality and can be widely applied in both indoor and outdoor environments. This product also adopts both single-air-chamber and double-channel.
Features
- High performance: high accuracy, fast response, and superior stability
- support MODBUS RS485 and SDI-12
- Compact size, best performance-to-price ratio
- User-friendly: fully-calibrated, easy to install and integrate
- Wide-range Power Supply: 5V ~ 16V
- Wide Range & High Accuracy: 400ppm ~ 5,000 ppm, ± (50ppm+5%*MV)
Applications

- Smart Agriculture
- Smart Cities
- Building ventilation systems
- Industry ventilation systems
- Airport, train station, shopping mall, home, office, classroom, and others
- public places for air quality measurement and indication
- Lab, warehouse, and other places to monitor CO2 level
Specifications
| CO2 | |
|---|---|
| Range | 400~5000 ppm |
| Accuracy | ± (50ppm+5%*MV)(in 400~3000ppm) |
| Resolution | 1 ppm |
| General Parameters | |
| Product Model | SOLO CO2 5000 |
| Interface | RS-485 |
| Protocol | MODBUS-RTU RS485/ MODBUS-ASCII RS485/ SDI-12 (v1.4) |
| Response Time (T90) | <5 minutes for 90% step change typical |
| IP Rating | IPx5 (the PTFE filter is not waterproof) |
| Operating Temperature | -10 ~ +50 °C |
| Operating Humidity | 0 ~ 85% (non-condensing) |
| Cable Length | 2 meters |
| Probe Dimensions | 110* 50 * 35 mm |
| Device Weight | 300g |
| MODBUS RS-485 | |
| Power Supply | 5V ~ 16V |
| Current Consumption | Vin=16V; 22mA (typical) Vin=12V; 28mA (typical) Vin=9V; 34mA (typical) Vin=5V; 57mA (typical) |
| Warm-up Time | 120s (typical) |
| Scan Interval | 1s |
| Poll Rate | 1Hz |
| Response Time | ≤ 4ms |
| SDI-12 | |
| Power Supply | 5V ~ 16V |
| Current Consumption (Sleep Mode) | Vin=16V; 28mA (typical) Vin=12V; 29mA (typical) Vin=9V; 30mA (typical) Vin=5V; 35mA (typical) |
| Current Consumption (Active Mode) | Vin=16V; 20mA (typical) Vin=12V; 27mA (typical) Vin=9V; 33mA (typical) Vin=5V; 55mA (typical) |
| Warm-up Time | 15ms |
| Scan Interval | 120s (typical) |
Dimensions

Electric Wiring

