Dual PIR Bi-directional People Counting Sensor (VS350)
An advanced, non-contact bi-directional people counting sensor engineered to track foot-traffic volume across passages, entryways, and facilities. Outfitted with high-precision dual PIR technology, comprehensive local log caching for 1,000 entries, ambient temperature diagnostics, and a tool-free NFC configuration layer, it delivers reliable off-grid monitoring in a white flame-retardant enclosure.
Key Highlights
- Bi-directional People Counting: Natively supports advanced multi-directional pedestrian foot-traffic tracking.
- Dual PIR Technology: Employs two passive infrared sensors for enhanced accuracy.
- NFC Local Configuration: Supports smartphone configuration app layouts via contact-free loops.
- Multi-Year Long Life Battery: Operates up to 9.7 years on standard power nodes.
- Integrated Temperature Measurement: Embedded sensor logs ambient temperature from -30°C to 70°C.
Product Overview
The hardware functions as a professional bi-directional people counting sensor explicitly engineered to deliver non-contact foot-traffic tracking and spatial usage diagnostics across commercial corridors, facility entranceways, and smart building environments. It integrates a high-precision dual PIR sensor array capable of logging entry and exit sequences across distinct configurations, establishing a maximum passage width coverage of 3.1 m when deployed via ceiling mounts at 3m heights or under 2.3 m when situated via low vertical wall mounts. The system features a dedicated ambient climate tracking module logging environmental temperatures between -30°C and 70°C with a tight accuracy threshold of ±0.5°C, providing constant diagnostic data to offset regional temperature influences on thermal sensor sensitivity.
Driven by an energy-efficient radio architecture running over universal Class A long-range network topologies, the device draws power from twin replaceable 2700 mAh ER14505 lithium batteries to deliver a maintenance-free service footprint scaling up to 9.7 years. Encased in a compact white flame-retardant PC enclosure measuring exactly 100 x 70 x 21 mm, the wireless node manages up to 1,000 internal data log entries with automated retransmission protocols to secure telemetry continuity during structural communications blackouts while leveraging near-field communication loops for rapid mobile device programming.
Key Features & Capabilities
Enterprise-grade technology designed for mission-critical operations
High-Precision Traffic Analysis
Utilizes a dual PIR sensor array to map bi-directional entries and exits across varied infrastructure passages accurately.
Flexible Dual Mount Profiles
Natively designed to be placed flush via high ceiling mount positions or intermediate vertical wall mount configurations.
Secure Event Data Cache
Features an internal non-volatile storage flash system that holds and logs up to 1,000 traffic entry lines locally.
Advanced Peer to Peer Triggers
Equipped with low-latency D2D communication protocols to drive remote controllers or switches directly under a second.
Frictionless Contactless Customization
Leverages integrated near-field interface tags for simple smartphone parameter adjustments and firmware checks without physical cabling.
Technical Specifications
Key technical details and performance specifications
| Specification | Details |
|---|---|
| Product Type | People Counting Sensor |
| Model Number | VS350 |
| Counting Technology | Dual PIR |
| Installation Height | Ceiling Mount: 2m - 3m; Wall Mount: 1.2m - 1.3m |
| Detection Range (Ceiling Mount) | Passage Width = 3.1 m (At the height of 3m, evaluated at 20°C) |
| Detection Range (Wall Mount) | Passage Width < 2.3 m (Evaluated at 20°C) |
| Best Operating Temperature Range | 15°C ~ 30°C (PIR sensitivity is highly influenced by ambient temperature) |
| Bi-directional Counting | Support |
| Temperature Measuring Range | -30°C ~ 70°C |
| Temperature Accuracy | ± 0.5°C |
| Wireless Transmission Protocol | LoRaWAN, D2D |
| Antenna Type | Internal Antenna |
| Frequency Bands Supported | CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4 |
| RF Transmission Power | 16 dBm (868 MHz) / 19 dBm (470 MHz) / 22 dBm (915 MHz) |
| Receiver Sensitivity | -137dBm |
| LoRaWAN Mode Class | OTAA/ABP Class A |
| LED Indicator | 1 x LED Indicator (Internal) |
| Physical Button | 1 x Reset Button (Internal) |
| Configuration Interfaces | NFC via Mobile App, Downlink |
| Advanced Software Features | Data Storage (1,000 entries), Data Retransmission, Data Retrievability, D2D Controller, Detection Sensitivity Report, Multiple Threshold Trigger Report |
| Power Supply Input | 2 x 2700 mAh ER14505 Li-SOCl2 Replaceable Batteries |
| Battery Life (EU868) | Around 9.7 Years (SF7) / Around 5.2 Years (SF10) [Evaluated at 10-min Interval, 25°C, 1000 People/Day] |
| Battery Life (US915) | Around 8.7 Years (SF7) / Around 4.6 Years (SF10) [Evaluated at 10-min Interval, 25°C, 1000 People/Day] |
| Operating Temperature Limits | -20°C ~ 60°C |
| Relative Humidity Bounds | 0% - 95% (Non-condensing) |
| Ingress Protection Class | IP30 |
| Physical Dimensions | 100 x 70 x 21 mm (3.94 x 2.76 x 0.83in) |
| Housing & Color Properties | PC (Flame Retardant), White |
| Hardware Net Weight | 99g (Batteries Included) |
| Installation Mounting Options | Ceiling Mount, Wall Mount |
| Regulatory Approvals | CE, FCC |
| Environmental Compliance | RoHS |
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