Available. The Ifm VS4000/24VDC/EXI/1G, also known as SR307A, is a control monitor designed for flow sensors, particularly in hazardous areas. It integrates flow, temperature, and wire break monitoring, ensuring comprehensive system protection. The device features an intuitive LED display and programmable pushbuttons for easy configuration of switch points and medium settings. It is housed in a DIN rail-mountable enclosure, measuring 104.5 x 32.5 x 113.6 mm and weighing approximately 368 grams. The operating voltage is 24 V DC with a tolerance of ±15%, and it consumes 100 mA. The device offers relay outputs with a contact rating of 4 A (250 V AC, cos φ > 0.7), 0.2 A (250 V DC), and 4 A (24 V DC). It operates within an ambient temperature range of -20°C to 60°C and has a storage temperature range of -25°C to 80°C. The device is certified for use in explosive atmospheres with ATEX and IECEx approvals, ensuring safety in hazardous environments. Please note that this product was discontinued by the manufacturer on March 31, 2026.