People traffic counter VS350

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Overview
The VS350 is a bi-directional passage people counter using dual PIR sensors to deliver anonymous, low-power people counting for LoRaWAN® deployments. Designed for quick installation and long battery life, it supports local D2D linkage and cloud/platform integration for analytics and automation.

Key Benefits

• LoRaWAN® wireless: low power consumption with long-range transmission and good penetration.
• Bi-directional counting via dual PIR sensors for direction-aware passage counts.
• Privacy-preserving anonymous detection: no images or personally identifiable data transmitted (GDPR-aligned at source).
• Cost-effective accuracy (typical scenarios up to ~80% accuracy).
• Wide detection coverage for common passage installations.
• Multi-year battery life with typical reporting intervals.
• Milesight D2D enables local device-to-device automation without cloud round trips.
• Device management and integration via NFC configuration, cloud/DeviceHub, API and webhooks.

How Bi-Directional Counting Works
The VS350 compares waveforms from two PIR elements to detect infrared changes and infer movement direction. Paired sensor signals differentiate inbound and outbound events for two-way counting.

Privacy & Anonymous Detection
Only anonymized count data is transmitted; the sensor does not capture images or personal identifiers, ensuring privacy at data source and compliance with data protection principles.

Battery & Power
Optimized for low-power LoRaWAN® operation. Example battery-life guidance depends on region, data rate and reporting interval (e.g., theoretical ~9.7 years SF7 EU868; practical examples vary with SF and region). Uses 2 × 2700 mAh ER14505 replaceable batteries.

Milesight D2D Communication
Proprietary Milesight LoRa-based protocol permits local linkage with other Milesight devices to trigger local automation (lighting, HVAC, alarms) based on passage counts.

Installation & NFC Configuration

• Mounting: ceiling mount (typical 2.0–3.0 m) or wall mount (typical 1.2–1.3 m).
• NFC configuration: use Milesight ToolBox app, enable NFC and tap device to read/write settings; supports templates and password protection.
• Quick deployment using dedicated brackets and user-friendly enclosure.

Typical Applications

• Smart buildings — entrances, corridors, meeting rooms.
• Retail — store entrances, storefront footfall analysis.
• Offices — occupancy and space utilization monitoring.
• Restrooms — occupancy and usage monitoring.

Technical specifications

• Model: VS350
• Measurement: People counting (bi-directional)
• Technology: Dual PIR
• Installation height: Ceiling 2.0–3.0 m; Wall 1.2–1.3 m (typical)
• Detection range: Ceiling mount passage width ≈ 3.1 m at 3 m height; Wall mount < 2.3 m (range affected by ambient temperature)
• Best operating temperature for PIR accuracy: +15 °C to +30 °C
• Built-in temperature sensor: -30 °C to +70 °C; Accuracy ±0.5 °C
• Bi-directional counting: Supported
• Wireless protocol: LoRaWAN®, Milesight D2D
• Antenna: Internal
• Frequency (region dependent): CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1/2/3/4
• Tx power: 16 dBm (868 MHz) / 19 dBm (470 MHz) / 22 dBm (915 MHz)
• Sensitivity: -137 dBm
• Mode: OTAA / ABP Class A
• LED: 1 × internal indicator
• Button: 1 × internal reset
• Configuration: NFC via mobile app; downlink supported
• Advanced features: Local storage (~1,000 entries), retransmission, data retrievability, D2D linkage, sensitivity reports, configurable threshold triggers
• Power supply: 2 × 2700 mAh ER14505 Li-SOCl2 replaceable batteries
• Battery life (examples): Theoretical and measured examples vary by SF/region (guideline values provided by manufacturer; actual life depends on settings and environment)
• Operating temperature: -20 °C ~ +60 °C
• Relative humidity: 0%–95% non-condensing
• Ingress protection: IP30
• Dimensions: 100 × 70 × 21 mm
• Housing & color: PC (flame retardant), White
• Weight: ~99 g (with batteries)
• Installation methods: Ceiling mount, Wall mount
• Regulatory: CE, FCC
• Environmental: RoHS