The Probe for Flood Sensor is the solution for protecting your home or business from flooding or water leaks. Broken pipes or faulty appliances can cause catastrophic water damage to your home or business if a leak or flood goes unnoticed. This sensor can help you avoid structural damage by detecting a water leak or flooding as soon as it happens. This sensor also triggers an alarm when both pins are in contact with water for more than 3 minutes. This Flood Sensor requires a hardwired connection to a Wireless flood and temperature sensor. Wire recommended and connectors recommended to do this. Must add the wireless flood sensor first. Honeywell recently released the ADT Flood Probe Sensor which includes the proper resistor that is wired in series with a 16 foot cable. The Probe for Flood Sensor does not include the resistor or any wiring.