GX-K2 Refrigerant Leak Detector

GX-K2 Refrigerant Gas Alarm: Flexible Protection with External Sensor

A tiny crack – and toxic, flammable, or climate-damaging refrigerant escapes unnoticed. The GX-K2 from Elektrotechnik Schabus GmbH & Co. KG makes this danger visible: simply plug it in, position the external sensor (2.5 m cable) in the optimal location, wait three minutes – and you’re protected. 

The highly sensitive semiconductor sensor detects R-32 (target gas), R-22, R-404A, R-410A, R-1234yf, R-290, and other HFC/HFO refrigerants even at very low ppm levels – long before health or environmental limits are reached. When triggered, the red LED flashes, and a piercing piezo buzzer sounds – ensuring an immediate response. 

The sensor is user-replaceable (approximate lifespan: 5 years), the cable non-extendable. No mounting at the main unit – only the sensor is fixed using screw and plug. Made in Germany, supplied with installation accessories and instructions – the GX-K2 is your flexible lifesaver in technical rooms, homes, and commercial facilities.

The GX-K2’s technology is focused on health and environmental safety. The external sensor responds extremely sensitively to fluorinated refrigerants and shows cross-sensitivity to methane, butane, ethanol, and hydrogen. Function test? Simply use lighter gas (R-290 = propane) – practical and safe. 

After a 3-minute warm-up, the system is fully operational – alarm in seconds. Operates via a 230 V socket – no batteries, no downtime. The GX-K2 is approved only for dry, non-explosive indoor environments. It supports the EU F-Gas Regulation through early leak detection – fewer emissions, lower refill costs, and longer system life. The GX-K2: flexibility that protects – because the sensor can be placed exactly where the leak occurs.

The GX-K2 is more than an alarm – it’s active health and environmental protection with installation freedom. Whether a heat pump in the basement, a split air conditioner in the office, or a refrigeration unit in a store: the external sensor can be mounted near the floor, ceiling, or directly on the equipment – wherever refrigerant may escape. Homeowners avoid costly repairs, technicians meet documentation requirements, and operators ensure employee safety. 

Its robust design, ease of use, and German engineering make the GX-K2 a reliable solution for refrigeration systems. Proof that safety can be flexible – and life-saving. With the GX-K2, you invest in prevention – protection that pays off before a leak becomes costly.

GX-K2 – flexibility that convinces:

• External sensor: 2.5 m cable, easily positioned – with mounting materials.
• Wide detection range: R-32, R-22, R-404A, R-410A, R-1234yf, R-290 – plus cross-sensitivity.
• Fast response: Alarm in seconds, ready after 3 minutes warm-up.
• Plug & Play: 230 V socket – only the sensor needs mounting.
• Loud alarm: Piezo buzzer + red flashing LED – impossible to miss.
• Replaceable sensor: User-replaceable, approx. 5 years lifespan.
• Environment & health protection: Early warning against toxic, flammable, or climate-damaging gases.
• Made in Germany: Superior quality, service, and compatibility by Schabus.

Applications: Where the GX-K2 provides flexible protection

The GX-K2 ensures targeted leak detection in numerous technical and domestic environments:

• Heat pumps: Sensor mounted at the evaporator – detects R-32, R-410A, R-454B.
• Split air conditioners: Placement at the indoor unit – detects R-32, R-1234yf.
• Refrigerated cabinets & freezers: Near the floor or rear – monitors R-404A, R-407C.
• Technical rooms: Flexible installation on pipes or compressors – 24/7 protection.
• Private homes: Retrofit at wall units or VRF systems.
• Commercial & catering businesses: Complements maintenance in supermarkets and restaurants.
• Renovations: Ideal for refrigerant conversions – complies with F-Gas Regulation.

With the GX-K2, protection begins where the leak occurs. The flexible, smart solution for anyone operating HVAC or refrigeration systems – with an external sensor for maximum accuracy. Easy installation, loud alarm, and German quality make it an indispensable early warning device. 

Scope of delivery:

• Refrigerant gas alarm GX-K2 with external sensor
• Mounting accessories
• User manual

General safety instructions

• Before installation or commissioning, read the user manual carefully.
• Installation must be carried out by qualified personnel.
• Packaging materials are not toys. Keep them away from children.
• Do not open the device; it contains no user-serviceable parts.

Intended use

• The FKW ALARM GX-K2 is a warning device for HFC and HFO refrigerants, providing an early alert well below dangerous concentration levels. 
• The monitoring system is therefore set to a very high sensitivity. The alarm signal is both acoustic and visual.
• The device is suitable for standard indoor use and must not be used in potentially explosive areas.
• The detector warns against toxic fumes from leaking cooling systems or heat pumps, protecting people from inhalation exposure.
• Any use other than that described above is not permitted.