MESTEK HD05 Refrigerant Leak Detector helps HVAC technicians identify refrigerant leaks in air conditioning and refrigeration systems. It detects multiple refrigerants, including R-22, R-32, R-134a, R-410A, and HFO-1234yf. With a 0–1000 ppm range, 1 ppm resolution, and a color screen, it provides clear readings. The 270 mm flexible probe reaches confined areas, while audible, vibration, and bar graph alarms help indicate leaks. A 30-second warm-up and response time under 10 seconds support efficient inspections. The built-in rechargeable lithium battery allows convenient portable use.
Functions
| Type | Lithium battery |
| Detection gas | R-12,R-125,R-22,R-407C,R-410A,R-404A,R-134A,R-401A,R-32,HFO-1234yf |
| Show | Color screen |
| Sampling method | Diffuison |
| Range | 0-1000PPM |
| Resolution | 1PPM |
| Maximun Sensitivity | R22/T134A@0.5 oz/year(14g/year) |
| Warm-up calibration time | Countdown 30 seconds |
| Response time | <10 seconds |
| Default alarm value | 600PPM |
| Alarm method | Buzzer alarm + analog bar graph + vibration alert |
| Automatic shutdown | 10 minutes |
| Backlingt automatically turns off | None |
| Working current | About 70mA |
| Operating temperature | 0-50°C |
| Operating humidity | <90%RH |
| Storage enviroment | -10-60°C / <85%RH |
| Universal tube lenth | 270mm |
| Size | 160*63*32(mm) |
| Charging port USB | Type-C/5C/1A |
| Powered by | Built-in lithium battery/2000mA/3.7V |
| Weight | About 280g |
Factory Showcase
Mestek achieves high standards and high consistency in product inspection and calibration through precise machinery and a clean environment.













