Dwyer SFI-800-1/2-A711 is a Sight Flow Indicator/Transmitter with a temperature range of -20 to 212°F (-29 to 100°C). It has an accuracy of ±5% of FS and requires a power supply of 8 to 28 VDC. The electrical connections consist of black, white, green, and red leads. It provides a white lead normally open switch and a green lead normally closed switch with a maximum output of 100 mA and 28 VDC. This product is compatible with various fluids and is made with materials such as polysulfone, UV stabilized polycarbonate, 316 SS, and fluoroelastomer. It has a pressure limit of 150 psi (10.34 bar) and a frequency range of 0 to 100 Hz. It can handle fluids with a maximum viscosity of 200 SSU and features electrical termination with ground, 15 to 28 VDC input, and 1 to 10 VDC output.