Milesight VS121, is an AI workplace sensor designed to monitor occupancy and utilization in modern workspace, which can reach up to 98% recognition rate based on its AI algorithm. Milesight VS121 has dual versions transmitting data through LoRaWAN® or Ethernet for different applications.
Based on standard LoRaWAN® protocol, VS121 can work with Milesight LoRaWAN® gateway and mainstream LoRaWAN® network servers. They are equipped with Wi-Fi for easy configuration without any configuration tools.
With Ethernet transmission, VS121-P is available to provide more applications. Rich serial interfaces such as DI, DO, and RS485 are provided in VS121-P for various scenarios. VS121-P supports data push via HTTP for easily integration and allows for remote management via Milesight DeviceHub.
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Model |
VS121 |
VS121-P |
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People Counting |
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Field of View |
Standard Version: 190 ° Horizontal, 112 ° Vertical High Ceiling Mount Version: 129.4 ° Horizontal, 68.4 ° Vertical |
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Full Monitored Area |
Standard Version: 78m2(R = 5m, H = 3m) High Ceiling Mount Version:126m2 (L=18m, W=7m, H= 7m) |
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Installation Height |
Standard Version: 2.5m to 4m High Ceiling Mount Version: 5m to 7m |
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Detection Rate1 |
Region Counting: Up to 95% Line Crossing Counting: Up to 98% |
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Advanced Feature |
Mapped Detection Region Customization, Filter U-Turns, Privacy Mask |
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LoRaWAN® Transmission |
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Protocol |
LoRaWAN®, Milesight D2D |
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Frequency |
CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923 |
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Tx Power |
16 dBm (868 MHz)/20 dBm (915 MHz)/19 dBm (470 MHz) |
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Sensitivity |
-137 dBm @300bps |
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Mode |
OTAA/ABP Class C |
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Ethernet Transmission |
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Ethernet Port |
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1 × RJ45 10/100 Mbps (PoE PD) |
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Network Protocol |
MQTT(S), HTTP, RTSP, NTP, SSH,etc. |
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Other Interfaces |
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Wi-Fi |
IEEE 802.11 b/g/n, 2.4GHz (AP Mode for configuration) |
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DI/DO |
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1/1 |
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Serial Interface |
- |
1 × RS485 |
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Button |
1 × Reset Button,1 × Wi-Fi Button |
1 × Reset Button |
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LED Indicators |
1 × Wi-Fi |
1 × Status |
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Power Input |
- |
2-pin 3.5 mm Terminal Block |
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Physical Characteristics |
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Power Supply |
5VDC / 1.5A by Type-C Port |
1. 5VDC / 2A by Terminal Block 2. 802.3af PoE |
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Power Consumption |
3.5W |
1. DC:3.5W 2. POE:4.5W |
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Operating Temperature |
-5°C ~ +55°C |
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Storage Temperature |
-20°C ~ +60°C |
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Relative Humidity |
0 ~ 95% (Non-condensing) |
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Color&Weight |
White/Black (Optional), 126.9g |
White, 186g |
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Dimension |
85 × 85 × 20 mm (3.35 × 3.35 × 0.79 in) |
85 × 85 × 30 mm (3.35 × 3.35 × 1.18 in) |
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Installation |
Ceiling Mounting |
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Approvals |
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Regulatory |
CE, FCC, RoHS |
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