Introducing
Modern sealed buildings trap a colorless, odorless gas — CO2 — and it changes how you feel, think, sleep and grow. VentPlus is India's first automatic carbon dioxide monitor and ventilation controller — measuring CO₂ in real time and acting on it to keep the air in your room fresh and healthy. 24×7, hands-free.
CO2 is the primary indicator of ventilation adequacy. When levels rise, cognitive functions suffer — research proves performance can decline by 15% to 50% at elevated levels.
| CO2 Level (ppm) | Air Quality | Impact on Health and Performance |
|---|---|---|
| 400 – 600 | Excellent | Fresh outdoor air. Optimal for productivity and deep sleep. |
| 600 – 1,000 | Good | ASHRAE & WHO recommended range for indoor spaces. |
| 1,000 – 1,500 | Moderate | Reduced alertness, slower decision-making begins. |
| 1,500 – 2,500 | Poor | Yawning, drowsiness. |
| 2,500 – 4,000 | Very Poor | Stuffy feeling, significant cognitive impairment. Avoid prolonged exposure. |
| Above 4,000 | Severe | Breathing discomfort, fatigue, headache, nausea. The room needs immediate ventilation. |
Monitor it. Control it. That's VentPlus.
Conference room · CO₂ rises silently during meetings
For workplaces
and Classrooms, Gyms, Meeting halls
For alert staff and enhanced productivity.
In a typical meeting room with 8–12 occupants, CO2 starting at 600–800 ppm can skyrocket to 2,500 ppm within 60–90 minutes — and cognitive performance can decline by 15% to 50% at these levels. VentPlus watches the air and drives your ventilation before anyone feels it.
Details
Wake up alert, not groggy
For your family
Get up fresh in the morning.
With the bedroom door closed for 8 hours at night, CO2 climbs from ~700 ppm at bedtime to over 1,600 ppm while you sleep — that groggy feeling isn't just poor sleep, it's the air. VentPlus ventilates automatically and keeps the night fresh, quietly.
Details
Greenhouse · CO₂ enrichment under control
For growers
Bumper harvest.
Plants feed on CO2. Enriching a greenhouse to ~700–1,200 ppm can lift yields by 20–30% — but only if the level is held steady. VentPlus doses and vents to keep it exactly where your crop wants it.
DetailsIntelligent automation
Indoor air quality should never be left to guesswork or inconsistent manual intervention. VentPlus keeps your environment healthy and productive — while keeping air-conditioning costs under control.
Industrial-grade NDIR CO₂ sensor — the same technology used in professional air quality instruments — measures carbon dioxide, temperature, and humidity every few seconds. VentPlus acts as both a precision CO₂ meter and an automatic CO₂ detector that triggers action. All readings shown live on the large 128×64 LCD display.
When CO2 crosses your set threshold — default 1,000 ppm — VentPlus switches on your fan via the built-in AC socket. An optional beeper alerts at 1,500 ppm.
Once fresh air restores CO2 to your lower limit — default 800 ppm — the fan switches off automatically. This demand controlled ventilation approach saves energy and is compatible with existing HVAC systems. Energy saved, air quality maintained.
Live CO2, temperature, humidity, and relay status uploaded to the VentPlus remote monitoring website — accessible from any browser on desktop or mobile.
Wi-Fi connectivity
VentPlus uploads real-time data to a secure remote monitoring website — accessible from any browser on desktop or mobile. See live readings, relay status, and ventilation graphs without being in the same room.
Remote monitoring data flow
Accessible from
VentPlus remote monitoring website — desktop view · same interface works on mobile
Technical specifications
Main Unit
| Physical & Hardware | |
| Display | 128×64 pixel backlit graphic LCD |
| Keyboard | 4 keys: ESC, UP, DOWN, SEL |
| Microcontroller | ARM-based 32-bit |
| Connectivity | Wi-Fi (data upload + relay pairing) |
| Input Power | 230V ±15%, 50 Hz AC |
| Fan Supply | AC socket on left side of unit, max 3A / 700W |
| Measurement & Operation | |
| Sensor Type | NDIR (Non-Dispersive Infrared) |
| CO₂ Measurement Range | 400 – 5,000 ppm |
| CO₂ Accuracy | ±(50 ppm + 5% of reading) after 10 min warm-up |
| Temperature | 0 – 50°C, ±1°C accuracy |
| Humidity | 0 – 95% RH, ±2% accuracy (10–90% RH) |
| Coverage Area | About 100 sq m (1,200 sq ft) if the air circulation in the room is moderate (so that the measured CO₂ level is representative) |
| Operation | 24×7 continuous monitoring and control |
Wi-Fi Relay Unit (optional add-on)
| Physical & Hardware | |
| Switch | 3-position: AUTO / OFF / Manual ON |
| Input Power | 230V ±15%, 50 Hz AC |
| Fan Supply | AC socket, max 3A / 700W |
| Connectivity & Operation | |
| Communication | Internet-based (no shared Wi-Fi required) |
| Pairing | One Main Unit pairs with one Wi-Fi Relay |
Common questions
Get in touch
Looking to buy a carbon dioxide monitor or CO₂ controller in India? Contact us for pricing, a custom quote, or technical details about your space. Our team is based in Meerut and serves clients across India.
Systellar Innovations
Shankar Chowk, 302 Delhi Road
Meerut – 250002, Uttar Pradesh, India
VentPlus is designed and built at our R&D lab in Meerut by Systellar Innovations. As a dedicated CO₂ monitor and controller manufacturer in India, we offer hardware and software customisation as per your requirements.
Thank you for reaching out. Our team will get back to you within one business day.