... and visual leak indicationNo user calibration requiredAll new ergonomic designSemiconductor gas sensorWith an internal pumpGases Sensed: CFCs, R11,R12,R13; ... HCFCs, R22, R502, R500; HFCs, R134A, R123, R125, R23, R404A, R407C, ... R410A and other halogen based compounds.Sensitivity: R22,R134A: Hi 6g/year, L 30g/yearR404A, 407C,410A: Hi ...