Mestek Halogen Leak Detector HD01C quickly and accurately detects refrigerants such as R22, R32, and R134a. Compared to the HD01, this upgraded model features a rechargeable USB Type-C port, eliminating the need for frequent battery replacements and offering dual high/low sensitivity settings to accommodate diverse leak detection environments. Its measurement range is 0–1000 PPM, with a maximum sensitivity of 0.5 ounces per year and a response time of less than 10 seconds, ensuring reliable performance during maintenance and safety inspections. Halogen Leak Detector HD01C incorporates beep, vibration, and analog display alarms for clear notification, while its compact design and automatic power-off feature enhance usability and efficiency in the field.