VIVOHOME Refrigerant Leak Detector with LED & UV Light, 7.9in Flexible Probe, 7 Sensitivities

VIVOHOME's HVAC Refrigerant Freon Leak Detector is a handheld gas leak locator that identifies halogenated refrigerants quickly using an adjustable sensor, flexible probe, and dual-color LED work light.

This compact detector is engineered for HVAC, automotive air conditioning, and refrigeration troubleshooting. It pinpoints leaks of HFCs, HFOs, CFCs and HCFCs with seven sensitivity settings, a bendable 7.9-inch probe for tight spots, and audible/visual alarms that intensify as concentrations rise. The unit also includes a white LED for general illumination and a UV lamp to reveal fluorescent dye used in system inspections.

How precise is this detector for finding small refrigerant leaks?

The sensor offers fine sensitivity control across seven levels so you can tailor detection to faint seepage or strong leaks. It claims a maximum detection accuracy equivalent to about 0.21 oz/yr under ideal conditions, and it switches alarm speed and brightness as levels increase to help identify source points faster.

• Seven adjustable sensitivity settings for varied leak rates
• Auto-adjusts alarm rate and LED flash when concentration rises
• Fast 3-second response after baseline is established
• Bendable 7.9-inch probe to inspect seams and fittings

What refrigerants and systems will it work with?

This detector is designed for all common halogenated refrigerants, including modern blends and legacy gases. Use it on vehicle AC lines, home and commercial HVAC systems, and refrigeration equipment to locate leaks without disassembling components first.

• Compatible with HFCs such as R134a, R410a and R32
• Detects HFOs including R1234yf plus CFCs and HCFCs
• Suitable for automotive, residential and commercial refrigeration systems
• Non-invasive probe testing preserves system integrity during inspection

What practical features help when working in dark or cramped spaces?

The unit’s flexible probe maneuvers into engine bays, behind compressors, and around insulation. Built-in dual-color lighting gives a white LED for general illumination and a UV light to reveal dye traces so you can both see and confirm suspected leak sites.

• 7.9-inch bendable probe reaches confined areas easily
• White LED illuminates dark workspaces for visual inspection
• UV lamp highlights fluorescent dye used in leak tracing
• Audible beeps and flashing LEDs guide you to the source under noise

How should I operate it to avoid false alarms and get reliable results?

Allow the detector to warm up in fresh air for about six seconds to establish a clean baseline, then sweep suspected areas. Condensation and contact with liquids can cause false alerts, so keep the probe dry and avoid testing wet surfaces; replace batteries when the orange indicator appears to maintain accuracy.

• Preheat 6 seconds in clean air before testing
• Expect a rapid 3-second detection response to actual leaks
• Keep probe away from moisture—condensation can trigger false alarms
• Four AAA batteries (not included) power up to ~50 hours in a snug carrying pouch

Who is this for: Technicians, HVAC contractors, refrigeration service workers, and DIYers who need a portable, sensitive tool to locate halogen refrigerant leaks. It’s useful for routine maintenance checks, pre-repair diagnostics, and confirming the presence of fluorescent leak dye in systems. The device balances portability and battery endurance with adjustable sensitivity and lighting options for comprehensive on-site leak detection.