Fluid level and temperature monitor and alarm system

A system for measuring characteristics of an internal combustion engine having a radiator and a radiator hose connected therebetween, said engine further including a coolant reserve tank, said coolant reserve tank being connected to said radiator and configured to transfer coolant between said coolant reserve tank and said radiator, said system further including:

• at least one coolant level sensor mounted to sense level of coolant in said coolant reserve tank;
• a coolant level circuit, said at least one coolant level sensor being connected to said coolant level circuit which senses a first current through said at least one coolant level sensor when said level of said coolant in said coolant reserve tank is at or above a selected coolant level, said coolant level circuit sensing a second current through said at least one coolant level sensor when said coolant in said coolant reserve tank is below said selected coolant level, said first current being higher than said second current, said coolant level circuit connected to at least one alarm and responsive to said at least one coolant level sensor to activate said at least one alarm when coolant level in said coolant reserve tank is below said selected coolant level;
• further including timer circuitry in said coolant level circuit connected to transistor circuitry configured to prevent said timer circuitry from activating said at least one alarm so long as coolant level is above said selected coolant level;
• wherein said timer circuitry turns said transistor circuitry on and off at a selected rate such that said transistor circuitry is turned on during a time period that is longer than a time period during which the transistor circuitry is turned off.