Electronic leakage detector with quickchange gas sensor for reliable detection of different gases and refrigerants. Flexible extension 200 mm, quickchange gas sensor GS4 R for refrigerants R 22, R 32, R 134a, R152a, R 290, R 404a, R 407c, R 410a, R 507a, R 600a, R 1234yf, 2 batteries 1.5 V, AAA, LR3. In a strong soft bag