NOTE THERE ARE NO RETURNS ON CLEARANCE ITEMS Tank Sender Arm to be used in conjunction with RV Electronics water gauges Description: This easy to fit tank sender probe only requires one 22mm (7/8") hole in the side of the tank and suits tanks from 100mm to 280mm (4"to 11") deep. The sender probe is sealed by a special grommet which is compressed in the hole when the nut is tightened and measures the water level by contact with the 5 sensors along the arm. It has no moving parts. Install instructions: See PDF: Click here for PDF Instructions (Opens in a new tab) Specifications Search compatible Water Gauges: Here Model: SP0028W RV Electronics, 040284 Camec Brand: RV Electronics Cable Length: 7.5m Suits: Plastic and Metal Tanks 100-280mm deep Made in Australia Warranty: 1 Year Warranty Also available in a 2.5m & 5.0m Cable Length