Simple oil and temperature switch alarm set up. Requires basic wiring skills and adding additional "t-fitting" to accommodate the oil switch to the boat. (if the boat did not currently have both a oil sender and oil warning switch) T-Fitting is item R024145. Please see pictures for more information. Alarm sounds at temperatures over 200F/ 93.3C, oil pressure alarms at no/low (<3psi) oil pressure situation.