Dwyer SFI-801-1/2-A711 is a sight flow indicator/transmitter with a temperature range of -20 to 212°F. It has an accuracy of ±5% of full scale and requires a power supply of 8 to 28 VDC. The electrical connections include a black lead for ground, a white lead for normally open, and a green lead for normally closed. It has a white lead output signal for normally open switch and a green lead output signal for normally closed switch. The wetted materials include a body made of UV stabilized polycarbonate and a window made of polycarbonate. The rotor is made of red UV stabilized PBT and rotor pin is made of 316 SS. The pressure limit is 125 psi and maximum viscosity is 200 SSU. The electrical termination includes a black lead for ground, a red lead for 15 to 28 VDC input, and a white lead for 1 to 10 VDC output.