Mastercool refrigerant and combustible gas leak detectors for professional HVAC and refrigeration engineers. Includes heated diode, infrared, and UV detection technologies for R32, R410A, R290, A2L, and CO₂ refrigerants. Shop the full Mastercool leak detection range with UK delivery from Airconspares.
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Mastercool 56100 Raptor Electronic Refrigerant Leak Detector 
Mastercool 56100 Raptor Electronic Refrigerant Leak Detector
Mastercool 56100 Raptor Electronic Refrigerant Leak Detector
£190.75Sale price £190.75 Regular price -
Mastercool 55900-KEY — Keypad for electronic leak detector 55975 
Mastercool 55900-KEY — Keypad for electronic leak detector 55975
Mastercool 55900-KEY — Keypad for electronic leak detector 55975
£3.93Sale price £3.93 Regular price -
Mastercool 55800-BAT2D D Battery Pack for 55800/55850 
Mastercool 55800-BAT2D D Battery Pack for 55800/55850
Mastercool 55800-BAT2D D Battery Pack for 55800/55850
£3.44Sale price £3.44 Regular price -
Mastercool 55750-BAT Replacement Battery 
Mastercool 55750-BAT Replacement Battery
Mastercool 55750-BAT Replacement Battery
£17.28Sale price £17.28 Regular price -
Mastercool UV Dye Refrigerant Leak Detection Kit 
Mastercool UV Dye Refrigerant Leak Detection Kit
Mastercool UV Dye Refrigerant Leak Detection Kit
£87.44Sale price £87.44 Regular price -
Mastercool 56400 Complete Electronic & UV Leak Detection Kit 
Mastercool 56400 Complete Electronic & UV Leak Detection Kit
Mastercool 56400 Complete Electronic & UV Leak Detection Kit
£349.39Sale price £349.39 Regular price -
Mastercool 55745-BL CO2 Infrared Leak Detector 
Mastercool 55745-BL CO2 Infrared Leak Detector
Mastercool 55745-BL CO2 Infrared Leak Detector
£783.00Sale price £783.00 Regular price -
Mastercool 55600-A Black Series Infrared Refrigerant Leak Detector 
Mastercool 55600-A Black Series Infrared Refrigerant Leak Detector
Mastercool 55600-A Black Series Infrared Refrigerant Leak Detector
£676.69Sale price £676.69 Regular price -
Mastercool 56200 Raptor Electronic Refrigerant Leak Detector with UV Blue Light 
Mastercool 56200 Raptor Electronic Refrigerant Leak Detector with UV Blue Light
Mastercool 56200 Raptor Electronic Refrigerant Leak Detector with UV Blue Light
£242.07Sale price £242.07 Regular price -
Mastercool 55900 IntellaSense II Refrigerant Leak Detector R134a/R1234yf 
Mastercool 55900 IntellaSense II Refrigerant Leak Detector R134a/R1234yf
Mastercool 55900 IntellaSense II Refrigerant Leak Detector R134a/R1234yf
£395.00Sale price £395.00 Regular price -
Mastercool 55800 IntellaSense Heated Diode Refrigerant Leak Detector 
Mastercool 55800 IntellaSense Heated Diode Refrigerant Leak Detector
Mastercool 55800 IntellaSense Heated Diode Refrigerant Leak Detector
£384.95Sale price £384.95 Regular price
Frequently asked questions
Yes. We supply professional HVAC engineers, refrigeration contractors, air conditioning installers, and facilities management companies across the UK. Trade accounts are available with preferential pricing and volume discounts.
We stock leading HVAC brands including Aspen Pumps, Sauermann, Blue Diamond, Javac, Mastercool, Armacell, K-Flex, Diversitech, and many more. All products are genuine OEM or manufacturer-approved.
Yes. Orders placed before 1PM on in-stock items are dispatched same day. We offer tracked delivery options across the UK.
Yes. Our trade team is available Monday to Friday 8AM to 4PM on 0161 775 1190 or at sales@airconspares.com. We can advise on product selection, compatibility, and specifications.