Bridge Key

Bridge Key

Bridge Key

Universal USB Communications Kit, Easy Software Programming of a Range of Define Products

SKU: BRIDGE-KEY 1474 Categories: , , , Tags: ,

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What it does

The Bridge Key is the required hardware to enable the WorkBench or ToolBox software to communicate with your product.

The reusable Bridge Key and communications kit is compatible with all USB-programmable Define Instruments products. It contains the hardware required for PC connection to your compatible device.

The kit contains:

  • 1x USB Bridge Key
  • 1x Interface cable
  • 1x Head-mount adaptor (for head-mount transmitters only)
  • 1x USB extension cable

Compatible with:


Merlin universal input indicator


Zen Datalogger 16 channel datalogger


Zen RTU/U and Zen RTU/R remote terminal units


Legacy ZEN-16 units


Nimbus and Zen IoT edge processing devices


Twin Link wireless gateways (and legacy Pathfinder products)


All transmitters (View them here)

The Bridge Key is required for product setup

Bridge Key Connection Diagram


Kit Contents

Bridge Key: USB programmer, type A USB connection

Interface cable: 2.3ft (70cm), connects Bridge Key programmer to your compatible device

Head mount adaptor: Enables connection to TM-2HL and TM-2HLI head mount transmitters

USB extension cable: 3.3ft (1m) length, Type A male/female USB connectors. Simplifies access for USB ports mounted at the rear of the computer etc.


Define ToolBox: Click here for more information and product compatibility

Define WorkBench: Click here for more information and product compatibility


Bridge Key Manual 16V04, 24-Nov-2016 | (343 KB)


Define WorkBenchDefine WorkBench

Simple software to program your Zen series or edge processing device

Use Define WorkBench to simulate, configure and view data for all Zen series control stations and Nimbus IoT Gateways, including:

With a user-friendly, uncluttered design, WorkBench offers a simple interface for setting up and scaling your unit, as well as retrieving and graphing your datalog.

N.B. Version 3 features Simulation Mode and is only compatible with legacy ZEN-16 firmware 2.0.0 and later.

Define WorkBench

Define ToolBoxDefine ToolBox

Smart, simple software to program your non-Zen series products

Use Define ToolBox software to program your non-Zen series product via your PC. It configures:

ToolBox offers a simple interface for connecting to your compatible device, and a range of flexible configuration options, including an extensive library of pre-calibrated ranges and linearization tables for advanced scaling.

Define ToolBox Configuration Software

All prices are in US Dollars. For pricing in other currencies, please contact us.