Service:Compatible liquids.Flow Range:3 to 30 GPM (10 to 100 LPM).Wetted Materials:Bearings: Ceramic; Shaft: Tungsten carbide; Rotor: Nylon 6-6; Rings: 316 SS; Body: TTM10, 11: Nylon 6-6, TTM20, 21: Aluminum; Other: TTM20, 21: Ceramic magnet.Accuracy:±5%.Batch Total Maximum:9999.Cumulative Total Maximum:9999.Temperature Limits:14 to 130°F (-10 to 54°C).Pressure Limits:Nylon models: 150 psig (10 bar); Aluminum models: 300 psig (20 bar).Pressure Drop:2 psi (0.14 bar) @ 30 GPM (100 LPM).Maximum Particulate Size:350 microns.Display:4-digit LCD, 5/8″ H.Auto Shut-off:After 1 minute.Connections:1″ female NPT.Power:(2) AAA alkaline batteries, installed functional, user replaceable.Battery Life:Battery Life: Approx. 9000 hours.Weight:Nylon models: 0.4 lb (190 g); Aluminum models: 0.7 lb (340 g).Agency Approvals:CE.