Exercise and zero
The wrench is loaded to full scale several times in the direction under test, then zeroed. Every direction gets its own preload, its own zero, and its own curve.
Electronic torque wrenches · 10 to 1200 Nm
Torque and angle,
Torque and angle,
straight to your MES.
A production-ready line of electronic torque wrenches. The tool is the Open Protocol server. No gateway, no installed software.
Supplied to tool brands, distributors, and manufacturers. We do not sell to end users.
10-1200Nm
Torque range
±2%
Accuracy
25models
Across 6 series
IP54
Protection
Built on open standards. No lock-in.
- Open Protocol
- ISO 6789
- Wi-Fi
- Bluetooth LE
- MES / SCADA
- CSV / JSON
- USB-C
- IP54
Work with us
Three ways to put this line to work.
Pick the depth that suits you: take the finished instrument under your own brand, license the stack for hardware you already build, or bring us in to engineer it alongside your team. Minimum order is one unit, so the first step costs you almost nothing.
Download the spec sheet PDF, four pages: the full line, metrology and commercial terms01
OEM and white-label
Tool brands and distributorsAdd a complete electronic torque wrench category under your own brand this year, with zero R&D. A ready line of 25 models, your packaging and documentation, with the production package already done.
- Your brand across all six series
- EXW pricing and MOQ on request
- Evaluation samples ready to ship
02
Firmware and IP licensing
Makers with their own hardwareLicense the stack that turns a tool into an Open Protocol server: the on-board browser configurator, ISO 6789 calibration, and over-the-air updates. Faster and cheaper than building it in house.
- Open Protocol server firmware
- Browser configurator and FOTA
- Permissive licences throughout, no copyleft and no royalties
- Evaluate the full interface on a PC simulator, before any hardware
- Static memory, no runtime allocation, MISRA-C:2012 as the guide
03
Contract R&D
Platform and system buildersBring the connected-wrench architecture into your platform: direct MES connection with no controller, angle and trace, proven across a 25-model production line.
- Architecture walkthrough under NDA
- Component or full-stack integration
- Built on shipping hardware
The platform
The wrench is the server.
Connected tools from the big names still need a controller or a gateway to reach the plant floor. Ours does not. Software already lives in the wrench, and every tightening result travels to where it is needed.
01 · Tool
The GN wrench
- Measures torque and angle on every pull
- On-board log of 10,000+ operations
- Full results.csv archive on the SD card
02 · Setup
A browser, no install
- Configurator served by the tool itself
- Presets, calibration, diagnostics, firmware
- Over USB, Bluetooth, or Wi-Fi, works offline
03 · Plant
MES and SCADA
- The wrench runs an Open Protocol server
- Each result reaches the system in real time
- Direct over Wi-Fi, with no gateways
Tightening trace
Batches and reports
Self-test
Drop and impact sensors
CSV and JSON export
Firmware from the browser
Setup and calibration run in a browser the tool serves itself.
Nothing to install and nothing to license. Connect over USB, Bluetooth, or Wi-Fi, open Chrome or Edge, and work offline: presets, calibration, traceability, and MES integration.
Served by the tool
USB
Bluetooth
Wi-Fi
Chrome / Edge · offline
Watch a full calibration run, in the browser.
The configurator served by the wrench drives an automatic, multi-point calibration and verification against a reference stand: target points, tolerances, live deviation per point, and a traceable protocol at the end. Following ISO 6789, with nothing to install.
Metrology
A certificate at the end, not just a number on the screen.
Calibration and verification follow ISO 6789-2. The tool is exercised, zeroed, and measured at multiple points in both directions, and the run ends in a document your quality department can file.
Measure the points
Readings at 20, 60, and 100 percent of the rated limit, repeated across runs, taken against a motorised reference bench driven from the same browser.
Judge against uncertainty
The verdict is not a bare deviation. It weighs the expanded uncertainty of the whole chain, so a pass is a pass with the margin stated.
What the report carries
- Relative deviation at every point, against the tolerance band of the class
- Repeatability across the runs at each point
- Hysteresis loop, loading up and unloading back down
- Uncertainty budget with expanded uncertainty U at k=2
- Pass or fail per point, computed with U included
- An exportable certificate: one self-contained file, chart embedded, ready to print
Accredited ISO 6789-2:2017 certification of our own reference chain is underway; CE marking is targeted for Q1 2027. The procedure and the report are in service today.
The range
25 models. Six series. 10 to 1200 Nm.
One connected platform covers the whole assembly station, from small fasteners to flange joints. Enter the tightening torque and we show the models that fit, smallest sufficient limit first.
Target torque
Nm
For 100 Nm: 0 models fit
Smallest sufficient limit first: more accurate, and lighter in the hand.
The full line
25 models in 6 series · 10-1200 Nm · ±2% of reading
Series GN1
Series GN1
10-80 NmCompact bodies for precision fastening at low torque.
10series coverage1200
Range10-80 Nm
Models3
Resolution0.05 Nm
Insert9 × 12 mm
Weight0.8 kg
Length360 mm
| Model | Range, Nm | Step, Nm | Accuracy |
|---|---|---|---|
| GN1-50 | 10-50 | 0.05 | ±2% |
| GN1-60 | 12-60 | 0.05 | ±2% |
| GN1-80 | 16-80 | 0.05 | ±2% |
Series GN2
Series GN2
12-120 NmVersatile span for general assembly work.
10series coverage1200
Range12-120 Nm
Models4
Resolution0.05-0.1 Nm
Insert14 × 18 mm
Weight1.0 kg
Length390 mm
| Model | Range, Nm | Step, Nm | Accuracy |
|---|---|---|---|
| GN2-60 | 12-60 | 0.05 | ±2% |
| GN2-80 | 16-80 | 0.05 | ±2% |
| GN2-100 | 20-100 | 0.1 | ±2% |
| GN2-120 | 24-120 | 0.1 | ±2% |
Series GN3
Series GN3
20-180 NmProfessional grade for industrial production lines.
10series coverage1200
Range20-180 Nm
Models4
Resolution0.1 Nm
Insert14 × 18 mm
Weight1.1 kg
Length420 mm
| Model | Range, Nm | Step, Nm | Accuracy |
|---|---|---|---|
| GN3-100 | 20-100 | 0.1 | ±2% |
| GN3-120 | 24-120 | 0.1 | ±2% |
| GN3-150 | 30-150 | 0.1 | ±2% |
| GN3-180 | 36-180 | 0.1 | ±2% |
Series GN4
Series GN4
30-300 NmReinforced for intensive, high-cycle duty.
10series coverage1200
Range30-300 Nm
Models4
Resolution0.1-0.2 Nm
Insert14 × 18 mm
Weight1.6 kg
Length540 mm
| Model | Range, Nm | Step, Nm | Accuracy |
|---|---|---|---|
| GN4-150 | 30-150 | 0.1 | ±2% |
| GN4-200 | 40-200 | 0.1 | ±2% |
| GN4-250 | 50-250 | 0.2 | ±2% |
| GN4-300 | 60-300 | 0.2 | ±2% |
Series GN5
Series GN5
60-600 NmHigh torque for large fasteners and structures.
10series coverage1200
Range60-600 Nm
Models4
Resolution0.2-0.5 Nm
Insert19 × 19 mm
Weight4.0 kg
Length1100 mm
| Model | Range, Nm | Step, Nm | Accuracy |
|---|---|---|---|
| GN5-300 | 60-300 | 0.2 | ±2% |
| GN5-400 | 80-400 | 0.2 | ±2% |
| GN5-500 | 100-500 | 0.2 | ±2% |
| GN5-600 | 120-600 | 0.5 | ±2% |
Series GN6
Series GN6
120-1200 NmMaximum torque, down to flange and structural joints.
10series coverage1200
Range120-1200 Nm
Models6
Resolution0.5 Nm
Insert19 × 19 mm
Weight5.5 kg
Length1600 mm
| Model | Range, Nm | Step, Nm | Accuracy |
|---|---|---|---|
| GN6-600 | 120-600 | 0.5 | ±2% |
| GN6-700 | 140-700 | 0.5 | ±2% |
| GN6-800 | 160-800 | 0.5 | ±2% |
| GN6-900 | 180-900 | 0.5 | ±2% |
| GN6-1000 | 200-1000 | 0.5 | ±2% |
| GN6-1200 | 240-1200 | 0.5 | ±2% |
Built to be cited in a quality audit.
Every unit is designed around real assembly lines: serial cycles, traceability requirements, and direct integration with the systems that record them.
Open Protocol
The wrench is the server
An on-board Open Protocol server. Your MES reads every result over Wi-Fi in real time, with no gateway or controller in between.
2 in 1
Torque, angle, trace
Gyroscope angle with auto zero. Every tightening captured as a full trace, on every model.
±2%
Accuracy
Digital torque to 0.05 Nm resolution on the low ranges. Factory calibrated, ISO 6789 wizard on board.
> 10,000
Every operation logged
Torque, angle, time, and pass or fail on each pull. Full results.csv archive on SD, CSV export.
IP54
Durability, measured
Aircraft aluminium and carbon housing. Drop and impact sensors plus usage counters record real conditions.
FOTA
New features after purchase
Firmware for the compute module and the radio module updates straight from the browser. The tool keeps gaining capability over its service life.
The line
25 models · 6 series
10 to 1200 Nm · ±2% · torque and angle on every model · production package complete.
One screen. Three themes for the shop floor.
Large figures read from a distance, and three themes match the light of the bay. The same display runs on every GN series.
Torque and angle on one screen
Target and tolerance
Peak mode and trace
Audible and colour OK signal
Three shop themes
Where torque control is going.
Three generations of the tool, and what the move to a connected wrench actually adds. Facts, no marketing.
| Parameter | Click wrench Mechanical |
Electronic wrench Readout |
G&N Devices Connected tool |
|---|---|---|---|
| Torque control | By preset, no actual value | Digital torque readout | Torque plus angle, full trace |
| Accuracy | ±4 to 6% | ±2 to 3% | ±2% |
| Operation result | Not recorded | In device memory | Log 10,000+, SD archive, batches |
| Data transfer | None | Manual USB export | Wi-Fi, Open Protocol to MES, live |
| Setup | Mechanical adjustment | Device keys or installed software | Browser configurator, no install |
| Tool health | None | None | Drop and impact sensors, usage, self-test |
| Feature growth | None | At a service centre | Firmware from the browser |
The hard part is already finished.
Anyone can show a render. We have working units in hand and the complete package a factory needs to build the line: 25 models drawn and specified, firmware, test and calibration procedure. What is left is your volume, not our engineering.
Book a demo-
25 models, fully documented
Six series from 10 to 1200 Nm, drawn, built and specified. Not a roadmap.
-
Samples ready to ship
Evaluation units reach a partner before the call, with live demo access.
-
Built to ISO 6789
On-board calibration wizard. CE marking targeted for Q1 2027, accredited ISO 6789-2 calibration underway.
-
Aircraft-grade build
Aluminium and carbon housing, IP54, drop and impact sensors, removable standard cell.
The company
We have already been the electronics inside someone else's wrench.
Since 2016 we have designed and supplied electronics for other companies, including the electronic modules for another manufacturer's torque wrenches. Through that brand, our electronics has already worked on the assembly lines of major automotive plants. This line is what happened when we stopped supplying a part of the instrument and built the whole one to our own standard.
The team
Seven people. Small enough that the engineer who designed a board answers your question about it.
- Founded
- 2016
- Founders
- Two architects and developers
- Engineering
- Power electronics, analogue electronics, mechanical design
- Also in house
- Assembly and finance
- Engineering and assembly
- Armenia
- Component manufacturing
- Partly China
Working with us
The terms a first order actually runs on, stated up front.
- Minimum order
- From one unit. Evaluate before you commit to a volume
- Lead time
- Up to two months, subject to stock
- Delivery terms
- By agreement
- Warranty
- From one year
- Documentation
- Full package for full-cycle production
Self-hosted by design
Your IP never leaves a network we own.
Every part of how we build and how we talk runs on our own servers: source control, CI, task planning, test and verification, and every message, call, and screen share. No third-party cloud sees a line of your project.
The build pipeline is ours.
Version control, continuous integration, task planning, and test and verification run in-house, on hardware we control. Code never leaves the building.
So is every conversation.
Chat, voice, video, and screen sharing are self-hosted and encrypted. A call about your firmware never routes through a vendor's data center.
One private network, one policy.
A zero-trust mesh links our machines with centralized access and a full audit trail. We know exactly what moves, and where.
We can bring you inside.
The same closed environment extends to a partner's team on demand, under one access model and full control of what is shared. We open a door, not the whole house.
For an OEM or licensing partner, that is the difference between trusting a promise and trusting an architecture.
Full technical specification.
Platform-level parameters. Exact values for a given model are on its device passport and quotation.
Measurement
- Accuracy
- ±2% of reading
- Resolution
- Down to 0.05 Nm (low ranges)
- Angle
- Gyroscope, auto zero (ZUPT)
- Units
- Nm · kgf·cm · lbf·ft · lbf·in
- Direction
- Clockwise and counter-clockwise
- Display
- 2.4" colour IPS, backlit
Construction
- Housing
- Aircraft aluminium, carbon fibre
- Finish
- Nickel plating
- Protection
- IP54
- Insert size
- 9 × 12 · 14 × 18 · 19 × 19 mm
- Service life
- 3 years and up
Power
- Battery
- Removable standard Li-Ion cell
- Charger
- Included
- Auto-off
- After 5 minutes idle
- Charge indicator
- Yes
Functionality
- Modes
- Track · Torque plus Angle · Cal check
- Presets
- Target torque, ± tolerance, pre-signal, angle
- Batches
- Bolt counter, batch report
- Signalling
- Buzzer and colour: pre-signal, target, overload
- Health
- Drop and impact sensors, usage counters
Interfaces and connectivity
- PC link
- USB Type-C (drive plus COM port)
- Wireless
- Wi-Fi · Bluetooth (BLE)
- Integration
- Open Protocol, the wrench runs as server
- Compatible with
- MES · SCADA · quality systems
Data and diagnostics
- Configurator
- On-board, in browser over USB or Bluetooth, no install
- Log
- > 10,000 operations plus results.csv on SD
- Export
- CSV (results) · JSON (presets)
- Self-test
- Sensors, clock, memory, battery, SD card
- Calibration
- Multi-point wizard following ISO 6789
- Firmware
- Browser update, compute and radio modules
Questions partners ask first.
No. The wrench runs an Open Protocol server on board, and your MES or SCADA connects to it directly over Wi-Fi. There is no separate box to buy, mount, or maintain.
None. The configurator is served by the tool itself and opens in Chrome or Edge over USB, Bluetooth, or Wi-Fi. It works offline. Firmware for both the compute and radio modules updates from the same browser.
The design is finished and the full production package is complete; pilot units are in hand today. The on-board calibration wizard already follows ISO 6789. CE marking (RED, EMC, LVD) is targeted for Q1 2027, and an accredited ISO 6789-2:2017 calibration certificate is underway. We are glad to share the current status and timeline on a call.
Yes. The line is built for OEM and white-label supply: your brand, packaging, and documentation across all 25 models. We also license the firmware stack and take on contract R&D.
Twenty-five models across six series cover 10 to 1200 Nm at ±2% of reading, with angle measurement and full tightening-trace capture on every model.
Power comes from a removable, standard Li-Ion cell, so service logistics stay free of proprietary packs. Drop, impact, and usage counters record real operating conditions for traceability.
Put a sample in your hands.
Pilot units are ready to ship to evaluation partners, and the minimum order is one. Book a short call and we will send a sample and live demo access in advance.
The live demo takes three minutes: wrench, browser, MES.