March 2026 – PIR Sensors Reach New Price Low
According to component market intelligence firm SupplyFrame, the average selling price (ASP) of basic PIR sensor modules (HC-SR501 and equivalents) has fallen below $0.50 for the first time, reaching $0.48 in February 2026. This represents a 40% decline from $0.80 in 2023.
Price Trends
| Year | Average Price (USD) | Change |
|---|---|---|
| 2020 | $1.20 | – |
| 2021 | $1.10 | -8% |
| 2022 | $0.95 | -14% |
| 2023 | $0.80 | -16% |
| 2024 | $0.65 | -19% |
| 2025 | $0.52 | -20% |
| 2026 (Feb) | $0.48 | -8% |
Drivers of Price Decline
1. Massive Production Scale
Chinese manufacturers, particularly in the Shenzhen region, have dramatically increased production capacity. Annual production of PIR sensor modules is now estimated at over 2 billion units, driven by demand from IoT, smart home, and security applications.
2. Process Improvements
Automation of assembly and testing has reduced labor costs. Some factories now use fully automated lines capable of producing 10,000 units per hour.
3. Component Cost Reduction
The cost of the pyroelectric element itself has fallen as new manufacturing techniques have been developed. The BISS0001 signal processing IC is now available for under $0.10 in volume.
4. Intense Competition
Over 50 manufacturers now produce compatible HC-SR501 modules, leading to price competition. Brands differentiate through quality control and customer support rather than price.
Impact on Different Market Segments
Hobbyist Market
For hobbyists, the price drop means PIR sensors are now essentially disposable. Projects that previously reserved sensors can now use them liberally.
Commercial Products
Product manufacturers benefit from lower BOM costs, enabling PIR sensors to be included in products where they were previously cost-prohibitive (e.g., children’s toys, disposable devices).
Industrial Applications
Industrial users continue to prefer higher-quality sensors (Panasonic, Murata, Excelitas) which have maintained pricing around $2-10, emphasizing reliability over cost.
Quality Concerns
The price drop has raised concerns about quality:
- Some ultra-low-cost modules use inferior pyroelectric elements with reduced sensitivity
- Poor soldering and assembly quality can lead to premature failure
- Fake BISS0001 ICs have been reported in some batches
- Electrostatic discharge (ESD) protection may be inadequate
Buyers are advised to purchase from reputable distributors rather than unknown sellers on marketplaces.
Future Outlook
SupplyFrame predicts that prices will stabilize around $0.45-0.50 for basic modules, as margins become too thin for further significant reductions. However, modules with additional features (adjustable timing, better sensitivity, lower power) may maintain higher pricing.
Regional Production
While China dominates production (85% market share), manufacturers in Vietnam, India, and Mexico are beginning to produce PIR sensors, partly driven by tariff concerns and supply chain diversification.
Conclusion
The sub-$0.50 PIR sensor marks a milestone in the commoditization of motion sensing technology. At this price point, motion detection can be added to almost any electronic product, enabling new applications and further growth of the IoT ecosystem.