Shenyang Instrument Import & Export Co., Ltd. has exclusive distribution Ramsay GTR130 / no flow detector Thermo Fisher Ramsey (USA Ramsay) GTR130 yes / no flow detector Ramsay GTR 130 with / without flow detector is a low-cost, Non-invasive, microwave-based instruments. Detect and monitor the presence / absence of bulk solids flow in pipes, ventilation ducts, such as the transmission point blanking mouth, conveyors and bucket elevators. Technical Data: Housing material: aluminum, epoxy-coated Ambient temperature: -5 ° F to +140 ° F maximum surface temperature sensor: 175 ° F maximum working pressure: 15psi supply voltage :20-30V DC; +15%, -10% Power consumption: about 12VA Operating frequency: 24.125 GHz relay output contacts:... Max 250V, Max 4A, Max 500 VA switching delay :0-10 seconds to install connection :1-1/4 "NPT or G 1-1/2 "anodized aluminum Process connection: PTFE Our company also distributes other foreign brands original instrument brands and models are complete, the company with a number of well-known companies have business dealings products, welcome to contact if there is demand , Request!