Dwyer SFI-800-1/2 is a sight flow indicator/transmitter designed for use with compatible fluids. It has a temperature range of -20 to 212°F (-29 to 100°C) and an accuracy of ±5% of FS. The power requirement is 8 to 28 VDC and it has electrical connections for ground, normally open, normally closed, and 8 to 28 VDC. The output signal is a normally open and normally closed switch with a maximum current of 100mA and voltage of 28 VDC. The wetted materials include 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. The maximum viscosity it can handle is 200 SSU and it offers electrical termination options for ground, 15 to 28 VDC input, and 1 to 10 VDC output.