A drop in pressure on a test gauge indicates that there is a leak. The point of leakage can then be found by using a leak spray, such as Spray Test (AC2172), or with an ultrasonic tester. Nitro Trace™ gas, a combination of OFN with Hydrogen.
This product would be ideal for automotive air conditioning systems experiencing leaks in refrigerants like R134A and R1234YF.
