1. Core Functions of Wireless Air Pressure Sensor Airbags

(1) Preventing Pinching and Enhancing Safety

During the operation of an electric roller shutter, if an obstacle (such as a person, pet, or object) is encountered, traditional mechanical limit switches or infrared sensors may react too slowly, posing a pinching risk. The wireless air pressure sensor airbag uses air pressure sensing technology to trigger a buffering mechanism instantly (millisecond-level response) upon contact with an obstacle, causing the shutter to stop or reverse immediately, preventing injuries.

Comparison with Traditional Solutions:

• Mechanical limit switches: Rely on physical contact, with a slower response time (≥0.5 seconds).

• Infrared sensors: Susceptible to dust and light interference, with blind spots.

• Air pressure sensors: Response time <0.1 seconds, high sensitivity, no blind spots.

(2) Reducing Shutter Damage and Extending Lifespan

Frequent hard collisions with obstacles can cause motor overload, rail deformation, or curtain damage in electric roller shutters. The buffering effect of air pressure sensors reduces impact forces, protecting the shutter structure and lowering maintenance costs.

Test Data:

• Without air pressure sensors, shutters showed a 40% increase in rail deformation probability after 1,000 collision tests.

• After installation, damage rates decreased by over 80%.

(3) Adapting to Complex Environments with High Stability

Wireless air pressure sensors use air pressure sensing + wireless signal transmission, unaffected by:

• Dust or fog (which can disrupt infrared sensors).

• Electromagnetic interference (e.g., from nearby motors in garages).

• Temperature fluctuations (stable operation from -20°C to 60°C).

2. Key Technical Parameters and Selection Guide

Selection Guide:

• Commercial shutters: Choose models with fast response and high sensitivity (e.g., 0.05 seconds).

• Industrial warehouse shutters: Prioritize long-range wireless transmission (≥20 meters) and anti-interference capabilities.

3. Typical Applications

(1) Retail Stores

• Issue: High foot traffic increases the risk of clothing or belongings getting caught.

• Solution: Airbags trigger instant reversal upon contact, avoiding disputes and hazards.

(2) Underground Garages

• Issue: Drivers or pedestrians may accidentally enter the closing zone.

• Solution: Immediate stop or reversal prevents collisions with vehicles or people.

(3) Logistics Warehouses

• Issue: Forklifts frequently passing through may block traditional sensors.

• Solution: Wireless air pressure sensors work without direct alignment, offering flexible installation.

4. Why Traditional Solutions Can’t Replace Air Pressure Sensors

5. Frequently Asked Questions (FAQ)

Q1: Do wireless air pressure sensors require external power?

A: Most use built-in lithium batteries or solar power, requiring no wiring (1–3 years of battery life).

Q2: Will installation affect the shutter’s original functions?

A: No. The sensor operates independently, working in parallel with the existing control system as a safety backup.

Q3: How to test if the sensor is working?

A: Lightly press a soft object (e.g., foam) against the shutter edge to check for immediate stop/reversal.

Q4: Can strong winds cause false triggers?

A: No. Adjustable pressure thresholds can ignore wind effects.

Q5: Which shutter materials are compatible?

A: Aluminum, steel, and PVC shutters are all supported (adjust pressure settings as needed).

Conclusion

Wireless air pressure sensor airbags provide reliable safety for electric roller shutters through high sensitivity and rapid response, especially in high-traffic or heavy-use environments. Users can select parameters based on needs, balancing safety and cost-effectiveness.