Home >> Products >> For Housing Equipments, Others / Gas Leak Detector ◆LAY Refrigerant Gas Leak Detector ● A single detector can cater for the refrigerants R22, R404A, R407C and R410A. ● With its sensor separated, the detector can be used in freezers of -40°C. ● Flexibly accepts the power supply between 100 and 240VAC. LAY Refrigerant Gas Leak Detector 7-17-24, Todoroki Setagaya-ku, Tokyo, 158-0082, Japan.