Transducers and allied products suppliesoffers liquid level sensor., model gop-16 ptd is one of the model of the . This liquid level sensor is a device which is used for sensing liquid levels accurately, using infrared light. Unlike conventional liquid level sensors, gop-16 ptd does not need any electrical or thermal connection with the liquid. Some of the technical specifications include: outputpnp no, 200 ma maximum short-circuit, overload and reverse polarity protected; supply voltage10-30 v dc, ripple 1 vpp; sensing mediaalcohol, ether, battery acid, water, mineral oils, etc; and operating temperature: 0 to 65°c. This liquid level sensor is sensor gives an output when the tip is surrounded by liquid. The sensor housing is made of special plastic material, which is resistant to corrosive liquids. Specifications: outputpnp no, 200 ma maximum short-circuit, overload and reverse polarity protected; supply voltage10-30 v dc, ripple <1 vpp; sensing mediaalcohol, ether, battery acid, water, mineral oils, etc; and operating temperature: 0 to 65°c.