Dwyer SFI-801-1/2 Sight Flow Indicator/Transmitter is a temperature range of -20 to 212°F (-29 to 100°C). With an accuracy of ±5% of FS, it requires 8 to 28 VDC power. It has electrical connections for ground, normally open, normally closed, and power supply. The output signal includes normally open and normally closed switches. It is compatible with various fluids and has wetted materials such as Polysulfone, UV stabilized polycarbonate, 316 SS, and more. It has a pressure limit of 125 psi (8.62 bar) and maximum viscosity of 200 SSU. The electrical termination includes ground, 15 to 28 VDC input, and 1 to 10 VDC output.