Bluegiga WT41u Long Range Bluetooth® Module

The World's Longest Range Bluetooth Module

The WT41u is a fully integrated Bluetooth 2.1 + EDR, class 1 module combining antenna, Bluetooth radio, and an on-board iWRAP Bluetooth stack. The  WT41u is a replacement for the WT41. The WT41u provides a superior 110 dB link budget and more than 1000-meter line-of-sight connectivity for Bluetooth applications where extreme radio performance or reliability is required. It also constitutes an ideal solution for developers that want to quickly integrate extremely high performing Bluetooth wireless technology into their design without investing several months in Bluetooth radio and stack development. The WT41u uses Bluegiga's iWRAP Bluetooth stack, which is an embedded Bluetooth stack implementing 13 different Bluetooth profiles and Apple iAP connectivity. By using WT41u combined with iWRAP Bluetooth stack and Bluegiga's excellent technical support, designers ensure quick time-to-market, and low development costs and risks.

Module Benefits

Superior radio performance:

  • 110 dB link budget provides 1000+ meter line-of-sight connectivity

Co-existence with Bluegiga's Wi-Fi products

Fully integrated Bluetooth solution:

  • Low development costs
  • Fast time-to-market

On the field upgradeable

Bluetooth, CE, FCC, IC, and Japan qualified:

  • Proven interoperability
  • No qualification costs

Module Specifications

Radio Features:

  • Bluetooth v.2.1 + EDR
  • Bluetooth class 1 radio
  • Transmit power: +20 dBm
  • Receiver sensitivity: -90 dBm
  • Range: 1000+ meter line-of-sight
  • Integrated chip antenna or U.FL connector

Hardware Features:

  • UART and USB host interfaces
  • 802.11 co-existence interface
  • 6 software programmable IO pins
  • Operating voltage: 2.7 V to 3.6 V
  • Temperature range: -40°C to +85°C


  • Dimensions: 35.55 mm x 14.50 mm x 5.65 mm
  • Bluetooth
  • CE
  • FCC and IC
  • Japan



Getting Started with WT41u Long Range Bluetooth Module

WT41u Long Range Bluetooth Development Kit

The easiest way to begin development with the WT41u Bluetooth Module is with the WT41u Long Range Bluetooth Development Kit.

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