
Gas Detection Systems
TQ Environmental manufactures and installs a plethora of high-quality gas detection systems for:
Every business needs a suitable gas detection system to prevent potentially fatal accidents. When left unchecked, a gas leak can cause severe health problems for everyone in your office or factory, not to mention the high risk of starting a major fire. You must protect your business early before a leak becomes lethal. Spotting the leak early ensures you can evacuate your premises and call the right people to provide help.
Our range of products make detecting a gas leak in your business space more straightforward, featuring advanced alarm functionality to ensure immediate response in the event of a leak
Designed for commercial and industrial use, our devices provide early leak detection and alarm alerts, helping businesses prevent accidents, protect employees, and comply with safety regulations.
Bring more safety to your company and enquire about our full range of gas detection products by clicking the button below.

Health & Environmental Benefits of Detectors
Gas leaks can also cause explosions and poisoning, which are extremely unsafe for your staff and can be lethal. They can cause respiratory issues in particular and lead to high repair costs for your company.
A gas leak detector would be a considerable benefit environmentally, too. Gas leaks contribute to greenhouse gas emissions, so detecting a leak earlier would reduce their negative impact. Our detectors are very easy to install and won’t require much maintenance during their lifespan, so rest assured, we won’t cause much disruption to your operations, and you won’t regret your choice.

Strict Safety Standards
At TQ, we have a long-standing reputation for delivering high-quality, reliable solutions. Specialising in safeguarding commercial, industrial, and public sector environments, we provide tailored gas monitoring systems designed to detect leaks quickly and accurately.
Our commitment to safety ensures that every project we undertake meets the strictest industry standards, helping to protect your people, property, and business from the risks associated with hazardous gas leaks.
From installation to ongoing maintenance, our expert team is dedicated to safely delivering state-of-the-art technology and comprehensive support to ensure continuous, reliable gas monitoring.

Commercial Gas Detection System
A commercial gas detection system from TQ offers superior performance in various high-risk environments, from factories and warehouses to hospitality venues and healthcare facilities. These systems provide real-time monitoring and instant alerts, enabling rapid response to any detected gas leak.
With TQ Environmental, you can expect innovative designs that integrate seamlessly with your existing infrastructure, ensuring minimal disruption to your operations. Every system we produce allows you to address your facility’s specific gas detection and monitoring needs, ensuring optimal safety and compliance with regulatory requirements.
Top Gas Detectors
Take a look at our range of gas detectors, which we manufacture, supply, and install for various industries across the UK.

TQ122 – 2 Wire – Methane Detector
0-100% LEL Flammable ATEX approved, 3-wire Catalytic "Pellistor" sensor.
- Input Voltage: 24V DC
- Power Consumption: 250mA
- Max Switching Current: 2A
- Power Input: 4-20mA

TQ4300 – 24 channel duel
TQ4300 1-24 point Infrared single gas detection system. (Nominally CO2). Universal voltage. Fult plus 2 alarm levels. VFC outputs, 4-20mA and Modbus capable. C/W 16 output relays for zone control. A 5amp fused spur is required for installation.
- Input Voltage: 254V ac
- Power Consumption: 250A
- Max Switching Current: 2A
- Power Input: 240V

TQ4300 – 16 channel duel
TQ4300 1-16 point Infrared duel gas detection system. (Nominally refrigerant and CO2). Universal voltage. Fult plus 2 alarm levels. VFC outputs, 4-20mA and Modbus capable. C/W 16 output relays for zone control. A 5amp fused spur is required for installation.
- Input Voltage: 254V ac
- Power Consumption: 250A
- Max Switching Current: 2A
- Power Input: 240V

TQ4300 – 16 channel single
TQ4300 1-16 point Infrared single gas detection system. (Nominally CO2). Universal voltage. Fault plus 2 alarm levels. VFC outputs, 4-20mA and Modbus capable. C/W 16 output relays for zone control. A 5amp fused spur is required for installation.
- Input Voltage: 254V ac
- Power Consumption: 250A
- Max Switching Current: 2A
- Power Input: 240V

TQ4200Z – 24 channel
TQ4200Z 1-24 channel Refrigerant ga, Infrared leak detection system. Universal voltage. Fault plus 3 alarm levels, VFC, audio and visual outputs, 4-20mA and Modbus output capable. C/W 16 output relaysfor zone control. A 5amp fused spur is requiredfor installation.
- Input Voltage: 254V ac
- Power Consumption: 250A
- Max Switching Current: 2A
- Power Input: 240V

TQ4200Z – 16 channel
TQ4200Z 1-16 channel Refrigerant gas, Infrared leak detection system. Universal voltage. Fault plus 3 alarm levels, VFC, audio and visual outputs, 4-20mA and Modbus output capable. C/W 16 output relay for zone control. A 5amp fused spur is required for installation.
- Input Voltage: 254V ac
- Power Consumption: 250A
- Max Switching Current: 2A
- Power Input: 240V

Remote panel TQ4200
Remote display panel for TQ4200. Complete with full LED display alarm LED's and alarm mute and resets. A 5amp fused sur is required for installation.
- Input Voltage: 254V ac
- Power Consumption: 250A
- Max Switching Current: 2A
- Power Input: 240V

TQ4200 – 24 channel
TQ4200 24 channel Refrigerant gas, Infrared leak detection system. Universal voltage. Fault plus 3 alarm levels. VFC, audio and visual outputs, 4-20mA and Modbus output capable. A 5amp fused spur is required for installation.
- Input Voltage: 254V ac
- Power Consumption: 250A
- Max Switching Current: 2A
- Power Input: 240V

TQ4200 – 16 channel
TQ4200 16 channel Refrigerant gas, Infrared leak detection system. Universal voltage. Fault plus 3 alarm levels. VFC, audio and visual outputs, 4-20mA and Modbus output capable. A 5amp fused spur is required for installation.
- Input Voltage: 254V ac
- Power Consumption: 250A
- Max Switching Current: 2A
- Power Input: 240V

TQ4200 – 8 channel
TQ4200 1-8 channel Refrigerant gas, Infrared leak detection system. Universal voltage. Fault plus 3 alarm levels. VFC, audio and visual outputs, 4-20mA and Modbus output capable. A 5amp fused spur is required for installation.
- Input Voltage: 254V ac
- Power Consumption: 250A
- Max Switching Current: 2A
- Power Input: 240V

Remote panel TQ8000
Remote display panel for TQ8000. Complete with full LED display alarm LED's and alarm mute and resets.
- Input Voltage:
- Power Consumption:
- Max Switching Current:
- Power Input:

TQ8000 – 48 channel
TQ8000 Touch 48 Channel Control Panel. Universal voltage. Fault plus 3 Alarm levels. 15 configerable vfc's, 4-20mA and Modbus output capable.
- Input Voltage: 254V ac
- Power Consumption: 250A
- Max Switching Current: 2A
- Power Input: 240V









