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Blutooth Low Energy (BLE)

Bluetooth-Based Indoor Positioning for Every Accuracy & Budget Need

Bluetooth Low Energy (BLE) enables scalable indoor tracking solutions for assets, people, and equipment. With two core positioning methods — Angle of Arrival (AoA) and Received Signal Strength Indicator (RSSI) — businesses can choose the right balance of accuracy, cost, and deployment complexity.

Whether you need sub-meter precision or cost-effective room-level tracking, BLE RTLS provides the flexibility to build the right solution for your operations.

Explore BLE AoA Hardware

Overview — What is BLE?

BLE-based Real-Time Locating Systems (RTLS) use Bluetooth tags and gateways to track and monitor the real-time location of assets and people indoors.

There are two primary BLE positioning technologies:

1. BLE AoA (Angle of Arrival)

Uses antenna arrays to calculate the direction of signals and triangulate precise positions.

2. BLE RSSI (Received Signal Strength Indicator)

Uses signal strength to estimate proximity and approximate location.

Both technologies serve different operational needs — from high-precision manufacturing environments to cost-sensitive tracking applications.

BLE AoA

How BLE Works

BLE tags broadcast signals at regular intervals. These signals are received by gateways installed across the facility.

  • In AoA, gateways calculate the angle of incoming signals to determine exact position.
  • In RSSI, gateways measure signal strength to estimate distance or zone presence.

The backend platform processes this data to provide real-time location visibility, alerts, and analytics.

BLE RSSI

BLE Technology Types

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BLE AoA — High Precision Tracking
  • Sub-meter accuracy (≈ 1 meter)
  • Uses antenna-array locators
  • Ideal for real-time positioning and movement tracking
BLE RSSI — Cost-Effective Tracking
  • Room/zone level detection
  • Uses standard BLE gateways
  • Ideal for zone-based tracking and presence detection
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BLE AoA vs BLE RSSI — Quick Comparison
Feature BLE AoA BLE RSSI
Accuracy ~1 meter Zone level detection
Cost Medium Low
Use Case Real-time precise tracking Zone/proximity tracking
Best For Manufacturing, Industrial Healthcare, Offices

Use Cases of BLE AoA

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Industrial & Manufacturing
  • Tool Tracking
  • MHE Tracking (Forklifts, BOPT, HOPT)
  • FG & WIP Tracking
  • Equipment Tracking
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Healthcare & Facilities
  • Patient Tracking
  • Nurse & Staff Tracking
  • Wheelchair / Equipment Tracking
  • Emergency Response
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Safety & Compliance
  • Restricted Zone Alerts
  • SOS & Emergency Alerts
  • Movement History & Audit Logs
  • Fixed Asset Tracking
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Workplace & Enterprise
  • Employee Tracking
  • Visitor Management
  • Zone Presence Monitoring

BLE Hardware

VTS-G25 Locator

VTS-G25 Locator

Product Size

180.7 × 180.7 × 40.7 mm

Positioning Accuracy

1 – 1.5 meter

Power Supply

PoE; DC (12–30V, 1A)

Operating Temperature

-20°C to +60°C

Maximum Installation Height

10 meters

IP Protection

IP66

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VTS-M2 UWB Asset Tag

VTS-M2 Asset Tag

Product Size

70mm × 46mm × 21mm

Wireless Protocol

Bluetooth 4.2

Battery Type

Replaceable (1000mAh)

Battery Life

3 Years

Operating Temperature

-20 to + 60 C

IP Protection

IP67

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VTS-M4 Pro Asset Tag

VTS-M4 Pro Asset Tag

Product Size

42mm × 26mm × 6mm

Wireless Protocol

Bluetooth 5.1

Battery Type

Replaceable (220mAh)

Battery Life

1.5 years

Operating Temperature

-20 to + 60 C

IP Protection

IP67

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VTS-H3B Person Tag

VTS-H3B Person Tag

Product Size

70mm × 46mm × 21mm

Wireless Protocol

Bluetooth 4.2

Battery Type

Non -Replaceable (1000mAh)

Battery Life

4 years

Operating Temperature

-20 to + 60 C

IP Protection

IP67

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VTS-W6 Person Tag

VTS-W6 Person Tag

Product Size

48.9mm × 41.7mm × 12mm

Wireless Protocol

Bluetooth 4.2

Battery Type

Replaceable (220mAh)

Battery Life

14 Months

Operating Temperature

-20 to + 60 C

IP Protection

IP67

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VTS-W3 Pro Person Tag

VTS-W3 Pro Person Tag

Product Size

40mm × 32mm × 10.3mm

Wireless Protocol

Bluetooth 4.2

Battery Type

Non -Replaceable (220mAh)

Battery Life

14 Months

Operating Temperature

-20 to + 60 C

IP Protection

IP67

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VTS-M6 Tag

VTS-M6 Tag

Product Size

97mm × 53.5mm × 28mm

Wireless Protocol

Bluetooth 5.1

IP Protection

IP67

Battery Life

10+ Years or 5 Years

Battery Type

Replaceable (5200mAh (Li-SOCI2) or 3200mAh (Alkaline) )

Operating Temperature

-20 C to 60 C (Li-SOCI2 battery)
0 C to 40 C (Alkaline battery)

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VTS-GW3 Gateway

VTS-GW3 Gateway

Product Size

120mm × 120mm × 22.5mm

Positioning Accuracy

2 – 4 meter

Power Supply

PoE; Micro USB 5V/1A

Operating Temperature

-30 to + 50 C

Installation

Horizontal, hanging on wall or ceiling

IP Protection

IP66

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VTS-M1 Coin Tag

VTS-M1 Coin Tag

Product Size

30mm × 30mm × 8mm

Wireless Protocol

Bluetooth 5.0

Battery Type

Replaceable (220mAh)

Battery Life

1 Year ( Default Setting )

Operating Temperature

-20 to + 60 C

IP Protection

IP67

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VTS-N2 Asset Tag

VTS-N2 Asset Tag

Product Size

51mm × 30.5mm × 3mm

Wireless Protocol

Bluetooth 5.0

Battery Type

Non-Replaceable (85mAh)

Battery Life

1 Years

Operating Temperature

-20 to + 60 C

IP Protection

IP67

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VTS-W7 Medical Wristband

VTS-W7 Medical Wristband

Product Size

32.4mm × 24.5mm × 4.5mm

Wireless Protocol

Bluetooth 5.0

Battery Type

Non-Replaceable (38mAh)

Battery Life

5 Months (Continuous Work )

Operating Temperature

-25 to + 55 C

IP Protection

IP67

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We’re here to answer all your questions

Quick answers to questions you may have

AoA is best for high-precision tracking (~1m), while RSSI is ideal for cost-effective, room-level tracking.

Yes, both can be combined — use AoA for critical zones and RSSI for wider coverage.

AoA offers ~1–1.5m accuracy, while RSSI provides zone level detection accuracy, depending on setup.

BLE works well with proper planning; AoA handles interference better, while RSSI suits basic tracking.

RSSI is more affordable, AoA offers higher precision. ROI comes from efficiency, visibility, and reduced manual effort.

Industries Using BLE RTLS

BLE RTLS supports a wide range of industries:

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Airports & Large Facilities
Airports & Large Facilities
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Warehousing & Logistics
Warehousing & Logistics
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Manufacturing & Industry 4.0
Manufacturing & Industry 4.0
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Hospitals & Healthcare Facilities
Hospitals & Healthcare Facilities
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Corporate Office Buildings
Corporate Office Buildings

Key Features of BLE RTLS

Flexible Accuracy

Choose between sub-meter precision (AoA) or room-level tracking (RSSI).

Scalable Deployment

Start small and expand across facilities without major infrastructure changes.

Energy Efficient

BLE tags offer long battery life, reducing maintenance effort.

Cost vs Performance Optimization

Deploy high-precision tracking only where needed and use RSSI elsewhere.

Versatile Applications

Supports industries from manufacturing and logistics to healthcare and corporate environments.

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Have questions about BLE RTLS or looking for the right RTLS solution for your facility? Fill out the form below, and our experts will connect with you shortly.

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