Uxcell a11050900ux0299 Aquarium Pool Liquid Water Level Sensor Stainless Steel Product Name : Water Level Sensor; Model No. : ZP4510-S;Contacts : NO+NC;Max Contact Rating : Max Contact Rating;10W : 10W Max Voltage : 100V DC;Max Current : 0.5A;Max Breakdown Voltage : 220V DC;Max Carry Current : 1.0A;Max Contact Resistance : 100mohm Temperature Rating : -30 - +125C;Float Ball Material : SUS304;Float Body Material : SUS304;Float Ball Size(Approx.) : 26 x 26mm / 1.02" x 1.02"(L*D);Thread Diameter(Approx.) : 9.8mm / 0.386"