Review on 🔍 Advanced Refrigerant Freon Leak Detector ILD-200 with Portable Case - High Sensitivity HVAC Halogen Leakage Tester Checker by 4ALLTECH by Mark Adams

He found my leak, bad Schrader valve, but I was outside where I prefer to find known leaks and tilted the block to read the display and couldn't see if the block was unshaded. This is normal as the number of tones has increased with the reported visual readings. The device arrived fully charged, a little vague in the manual but enough to get you started looking. The unit has a preheat countdown timer and a ready tone that lasted less than 10 seconds. The wand is too big to fit in the air ducts I tested, but can go under the case and in front of the air vents, among other things. Now another tool for finding non-UV leaks in hard-to-see areas or when the system is full and out of dye. 1 star removed due to display in the sun.