The CLS 16 capacitive sensor controls liquid levels in nonmetal and metal tanks and tubs. It features an aluminum housing, a small 16-mm mounting diameter, and a short 8-mm behind-the-panel depth. Other features include an npn output, a supply voltage of 7.5 to 24 V dc, a three-wire connection, and a standard wire length of 2 m. The sensor is fitted with a sealing O-ring and a hex nut. Standard color is white (part number RAL9016), yet it also can be varnished in colors that blend well with the color of the mounting surface. Pricing is $49.82 each in 50-unit lots. Small quantities are available from stock.