Thermometers & Temperature Measurement Tools for HVAC

Infrared thermometers, thermocouple probes, dual-input thermometers, and temperature measurement tools for air conditioning and refrigeration commissioning, servicing, and diagnostics. Mastercool temperature tools in stock with same-day UK dispatch and trade pricing.

Infrared Thermometers

Non-contact infrared thermometers for fast surface temperature measurement on condensers, evaporators, pipework, and electrical components. The Mastercool 52224-D IR 8 Laser Thermometer covers −60°C to +760°C with 12:1 distance-to-spot ratio for accurate readings from a safe distance. The 52224-CC Circular Laser Thermometer provides a circular laser pattern for more precise targeting on pipe surfaces. Infrared thermometers are essential for checking condenser and evaporator coil temperatures during commissioning and fault diagnosis.

Thermocouple Probes & Contact Thermometers

K-type piercing temperature probes for direct contact measurement on pipe surfaces, refrigerant lines, and air streams. Piercing probes penetrate pipe insulation for accurate refrigerant line temperature readings without removing insulation. Essential for superheat and subcooling calculations during system commissioning and charging.

Superheat & Subcooling Calculations

Accurate temperature measurement is the foundation of correct superheat and subcooling calculation — critical for verifying correct refrigerant charge on R410A, R32, and R1234yf systems. Use temperature probes on suction and liquid lines alongside manifold gauge pressure readings to calculate superheat and subcooling. Digital manifolds with built-in superheat/subcooling calculation — including the Mastercool Black Series — automate this process.

Data Logging & Monitoring

Lascar EL-USB-2 USB temperature and humidity data loggers for commissioning verification, ongoing system monitoring, and compliance documentation. Records temperature and humidity over time for download and analysis. Stocked under Electrical Accessories.

Trade accounts available — call 0161 775 1190 for volume pricing on temperature tools.