Just in, a Air Conditioning Condensate Water Overflow Sensor to protect your home from water damage from a clogged A/C overflow drain. Save Yourself with this sensor. You will spend $$$$$$$$$$ with a clogged A/C Overflow drain line home repair. This installs on the side of the drain pan to detect water at the drain pan. Thus indicating a clogged A/C Condensate Drain System that will shut off the A/C System to prevent water damage in the house or business. Item comes with the instructions and here are the Instructions from there website for your review.

Note: If you need more than 1. Let me know.