The Universal Alarm may be connected to existing 24VAC control circuits to indicate possible system trouble. The Universal alarm may be connected across normally closed switches such as those found in condensate pumps and condensate overflow switch found in typical residential HVAC systems. The Universal Alarm may be operated on phantom current provided by typical HVAC contactor coils. This allows the alarm to be wired in parallel with existing condensate pump shut off circuits not equipped for alarm contacts. The alarm is provided with 2 wire nuts, a sheet metal screw, and double sided tape for convenient installation options.