Industrial robot cell with prominent red Emergency Stop button and safety indicator panel.
How It Works
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Instant E-Stop Visibility — Without Rewiring or PLC Changes

The retrofit smart E-Stop indicator system

A patent-pending clip-on sensor module and indicator panel that retrofit onto any existing Emergency Stop. Instantly see which E-Stop has been pressed — wireless or USB-C operation, designed for industry, SMEs, and education

How It Works

A retrofit system designed to work with any existing Emergency Stop. No rewiring, no PLC changes.

1. Clip-On Sensor Module

Attaches directly to existing E-Stops without altering wiring.
Uses a magnetic reed or Hall-effect sensor to detect activation.
Battery powered, with optional USB-C wired power/data mode.

2. Wireless or USB-C Communication

Long-range sub-GHz wireless for most workshops and production areas.
USB-C wired mode for RF-restricted environments.

3. Indicator Panel

Displays exactly which E-Stop has been pressed in real time.
Supports optional cloud analytics for history, reporting, and multi-site visibility.

Close Safety Systems clip-on E-Stop sensor module and indicator panel.

Concept Rendering — Clip-On Smart E-Stop Sensor Module
Shown attached to a standard industrial E-Stop housing. Final appearance subject to refinement.

Why It Matters

The Problem

Emergency Stops are pressed thousands of times per day across industry — but operators often have no visibility of which one was triggered.
This causes:

  • Unnecessary downtime

  • Slower response during incidents

  • Poor traceability and safety reporting

  • Increased training time

  • Compliance challenges for SMEs and education

Traditional “smart” systems cost £3,000–£10,000 per line and require rewiring or PLC integration.

The Solution

Close Safety Systems provides a simple, low-cost retrofit clip-on module that instantly identifies which E-Stop has been pressed — without touching the safety circuit.

  • No rewiring

  • No PLC changes

  • No installation downtime

  • Fits any existing E-Stop

  • Works in both wireless or RF-restricted environments

Why It’s Better

  • Costs a fraction of existing diagnostic systems

  • Fully retrofit — installs in minutes

  • Universal compatibility

  • Optional cloud analytics for history, reporting, and multi-site visibility

  • Designed for SMEs, training centres, education, and large industry

Operator confused about which Emergency Stop has been pressed on a production line

Product Features

🔧

Clip-On Smart Sensor Module

Attaches to any existing E-Stop without rewiring or modifying the safety circuit.
Uses magnetic reed or Hall-effect sensing for reliable activation detection.
Battery powered, with optional USB-C wired mode.

Key Features:

  • Zero rewiring required

  • Fits any industrial E-Stop

  • Secure clip-on mounting

  • Industrial-grade sensing

  • Replaceable battery

🔌📡

Wireless or USB-C Communication

Long-range sub-GHz wireless for workshops, training centres, and factories.
Optional USB-C wired mode for RF-restricted environments such as defence and aerospace.
Automatic fail-safe reporting ensures no signal is ever missed.

Key Features:

  • Up to 300m wireless range

  • Sub-GHz industrial frequency

  • Cross-wall penetration

  • USB-C power + data mode

  • Auto fail-safe reporting

📟

Real-Time Indicator Panel

Displays exactly which E-Stop has been pressed in real time.
Supports multi-stop monitoring and cloud analytics.
Fast, clear visibility for operators, instructors, and safety officers.

Key Features:

  • Supports multiple E-Stops

  • Bright 7-segment display

  • Audible alert option

  • Plug-and-play installation

  • Cloud logging optional

Specs at a Glance:
🔋 Battery life: 12–18 months | 📡 Range: 300m | ⚙️ Compatibility: Fits all E-Stops | 🔌 Power: USB-C / Battery

How It Compares

Comparison table of different safety systems for industrial equipment, including features like retrofit options, wireless indicators, cloud analytics, compatibility with E-Stops, cost, installation time, PLC integration, SaaS availability, best applications, and automation types.

A Simple, retrofit-first solution that adds visibility traditional systems can’t provide

🛠️

Why Choose Close Safety Systems

Truly Retrofit-First

Industrial-Grade Wireless

Universally Compatible

Optional Cloud Analytics

Installs in minutes without rewiring or PLC changes.

Sub-GHz long-range connectivity built for factories and workshops.

Add reporting, alerting, and visibility across sites.

📡

🧩

☁️

Works with any existing E-Stop, any brand, any vintage.

Our Development Roadmap

A clear plan for delivering the full Close Safety Systems platform.

This roadmap outlines the technical, regulatory, and commercial milestones required to bring Close Safety Systems from prototype to a fully licensed and scalable product platform.

🔧 2026

Prototype Development & Pilot Preparation

✔ Q1

  • Finalise full functional spec

  • Select engineering partner

  • Begin radio technology testing (LoRa / sub-GHz)

  • CAD enclosure & PCB preliminary design

✔ Q2

  • Build proof-of-concept PCB

  • Begin firmware development

  • Early wireless range testing

  • Prepare pilot/demo materials

  • ✔ Q3

  • Produce Version 1 prototypes

  • In-house controlled testing

  • Early compliance assessment

  • Recruit pilot sites (SMEs, education, workshops)

  • ✔ Q4

  • Deploy prototypes to pilot sites

  • Gather real downtime/incident data

  • Refine hardware & firmware

  • Begin licensing discussions

🧩 2027

Production Engineering, Licensing & SaaS Beta

✔ Q1

  • Manufacture-ready Version 2 prototypes

  • Finalise enclosure + PCB

  • Expanded pilot deployments

✔ Q2

  • Manufacture-ready Version 2 prototypes

  • Finalise enclosure + PCB

  • Expanded pilot deployments

✔ Q3

  • Licensing negotiations with manufacturers

  • Draft royalty/licensing agreements

  • Closed SaaS beta launch with pilot users

✔ Q4

  • Licensing agreements confirmed

  • Deliver manufacturing package to partners

  • Prepare 2028 commercial rollout

🛡️ 2028

Commercial Rollout & Expansion

✔ Q1

  • Manufacturing & distribution by license partners

  • Public SaaS platform launch

  • Marketing campaign begins

✔ Q1

  • International licensing expansion

  • Grow SaaS dashboards & analytics

✔ Q3 - Q4

  • Expand partner network

  • Add hardware variants (range extender, low-cost variants)

  • Grow royalties + recurring SaaS revenue