TSP-1836 CO2 Monitor for Smart Buildings
Why this monitor works for commercial projects
Designed to help contractors, integrators and facility teams deploy reliable indoor air quality monitoring with simple wiring, stable communication and practical building control value.
High-accuracy CO2 sensing
NDIR CO2 sensing with 1 ppm resolution and ±50 ppm +5% of reading accuracy in the 400–2000 ppm range.
Long service life
Self-calibration and a stated 15-year CO2 sensor service life support long-term deployment planning.
Ready for building systems
RJ45 Ethernet interface with MQTT protocol support makes it suitable for smart building and ventilation projects.
Flexible installation
Supports recessed installation in a 65×65 mm junction box, with an optional surface-mount bracket.
Built for real commercial environments
Suitable for schools, offices, hotels and other public premises, as well as residential projects, ventilation systems and connected air quality monitoring systems.
Schools & classrooms
Monitor CO2 concentration for healthier, better-ventilated learning spaces.
Offices
Support workplace comfort strategies with CO2, temperature and humidity data.
Hotels & public spaces
Deploy commercial-grade indoor air monitoring in guest and service areas.
Ventilation systems
Use live measurements to support ventilation control and system optimization.
Key specifications
A clean summary for engineers, consultants and procurement teams evaluating fit, integration and deployment conditions.
| Category | Specification | Value |
|---|---|---|
| Output | Communication interface | RJ45 (Ethernet TCP) |
| Power | Supply options | 24VAC±10%, 18–24VDC, or 48V PoE |
| Operating environment | Temperature / Humidity | -20 to 60℃ / 0–99%RH |
| CO2 sensor | Technology | NDIR (Non-Dispersive Infrared Detector) |
| CO2 range | Measurement range | 400–5000 ppm |
| CO2 accuracy | Performance | ±50 ppm + 5% of reading at 400–2000 ppm |
| Temperature | Measurement / Accuracy | 0–60℃ / ±0.6℃ @25℃ |
| Humidity | Measurement / Accuracy | 0–99%RH / ±4.0%RH (20–80%RH) |
| Optional TVOC | Range / Resolution | 1–2000 μg/m³ / 1 μg/m³ |
| Dimensions | Overall size | 94 × 116.5 × 36 mm |
| Housing | Material / Rating | PC/ABS fire-proof material / IP30 |
Specifications summarized from the uploaded TSP-1836 datasheet.
Integration advantages
Positioned for commercial retrofits and BMS projects thanks to Ethernet communication, flexible power and compact wall installation.
• Ethernet communication
RJ45 output for networked monitoring and smart building projects.
• MQTT protocol support
Useful for connected monitoring platforms and data-oriented deployment.
• 24V or PoE options
Gives integrators more wiring flexibility across different commercial sites.
• Visual status indication
Three-color CO2 range indication supports simple on-site review.
Ideal for consultants and contractors
Use this product page as a clean decision layer for applications engineering and early-stage product selection.
RJ45
Ethernet TCP output
PoE
48V option available
OLED
Optional display suffix
TVOC
Optional multi-parameter version
Model guide
Simple comparison for choosing the right version based on sensing needs and project power architecture.
| Model | CO2 | Temp. & RH | TVOC | Power | Interface |
|---|---|---|---|---|---|
| TSP-1836C | ● | ● | – | 24V | Ethernet (MQTT protocol) |
| TSP-1836-PoE | ● | ● | – | PoE 48V | Ethernet |
| TSP-1832C | ● | ● | ● | 24V | Ethernet |
| TSP-1832-PoE | ● | ● | ● | PoE 48V | Ethernet |
| -SL suffix | OLED display option | ||||
Need a CO2 monitor for your next building project?
Talk with Tongdy about model selection, integration, installation method and commercial deployment needs.
