VS351 Description
Overview
The VS351 is a mini AI thermopile people counter for entrances and passages. It blends cost-effectiveness, high accuracy, and low power use in a compact body that counts people moving in and out.
Sensor Fusion
The battery version pairs a thermopile with radar, where radar activates the device and the thermopile counts. A built-in temperature sensor keeps performance stable across changing conditions.
AI Counting
An AI algorithm delivers bi-directional counts with up to 90% accuracy. It filters out side-by-side walkers and U-turns, so the data stays reliable in busy doorways.
Versions
A battery version gives a fully wireless install with thermopile and radar. A Type-C version runs on continuous power using thermopile only, ideal for permanent deployments.
Power
Synchronised radar and thermopile operation keeps power use low, and a sleep schedule pauses detection on quiet nights. This ESG-friendly design suits long-term monitoring.
Integration
The Milesight D2D protocol lets the counter control devices such as lights without a gateway. Local storage holds 1,000 records with retransmission to avoid data loss.














































