Marine Boat Truck RV Black Water Holding Sewage Tank Level Sensor Sending Unit 240-33ohms 304SS Features: Material: 304 Stainless Steel Designed for black water holding sewage tank applications Sensors can be used with all gauge brands that have compatible OHMS Constructed to meet and/or exceed all applicable ISO,NMMA/ABYC and USCG standards Manufactures states that a one inch(25mm) clearance must be maintained between the tank bottom and the float retaining collar in addition to adjacent side or baffle of tank. Specification: 1. Material: 304 Stainless Steel 2. Resistance output signal: 240-33 ohm 3. Assembly method: SAE standard 5 holes 4.For sensor dimensions, please see the listing photos Accessories: 5 pieces of M5 screws 2 mm thick NBR gasket We can also provide 0-190 ohms signal black water tank level sensors, please see our store listings or contact us directly for details. The listing price does not include any destination duties/taxes/custom fees/etc that will be due when the product arrives at destination countries/regions. It is the customer's responsibility to pay for all custom duty/taxes/custom fees if any. All shipping will be by China Post Registered Air Mail or epacket with shipping tracking number provided. It will take about 3-4 weeks' time to deliver to you after shipping out, some countries/regions may take longer time to deliver. If you want faster delivery, please contact us for express shipping upgrade.