Electronic urinal drain monitoring system with integrated light and sound alerts

Abstract

The utility model relates to a urinal monitoring apparatus that detects liquid stagnation within the drain or trap portion of a urinal and produces a light and sound alert to signal maintenance personnel. The apparatus includes a urinal receptacle having a drain portion in communication with a trap, a liquid sensing means located near the drain portion to sense liquid above the normal trap seal level, a microcontroller unit programmed with a stagnation detection logic, and an alert means consisting of a visual indicator and an audible alarm. The system operates by monitoring the duration of liquid presence at the trap; if liquid remains longer than a set time, the microcontroller triggers both light and sound alerts. Once drainage returns to normal, the system automatically resets to standby. The configuration provides an efficient, low-cost, and retrofit-ready solution for preventing urinal overflow and improving restroom maintenance.