Classification of Manhole Level Gauges (Sewer Level Gauges)

　　In modern cities, you can see wells of various sizes scattered throughout the streets. These wells serve different functions and play distinct roles in urban infrastructure development and residents’ daily lives. If sewers are not cleaned promptly, they can become clogged during rainy weather, leading to waterlogging that harms the city’s appearance and disrupts residents’ routines. A single city may have tens of thousands of underground wells. How do municipal authorities determine which wells require cleaning and maintenance? This requires… Manhole level gauge Let’s solve it.

　　Ultrasonic sewer level gauges, also known as manhole level sensors, place the sensor above the liquid being measured and emit ultrasonic waves toward the water surface. By analyzing the reflected ultrasonic signals and their travel time, the system calculates the distance from the sensor to the water surface. The host unit wirelessly transmits this measurement to an on-site relay device or to a backend server, where users can directly access real-time level data. Based on the depth of each well, alarm thresholds are configured in the backend; when the water level exceeds the preset threshold, the system triggers an alert. Upon receiving the alert, maintenance personnel can identify the affected well and dispatch staff promptly for cleaning, thereby helping to prevent urban flooding.

　　Manhole level gauges, also known as sewer level gauges, are instruments used in municipal pipeline networks to monitor water level fluctuations in catch basins, stormwater wells, sewage wells, and inspection wells. Depending on their operating principles, they can be categorized into three types: pressure‑type, radar‑type, and ultrasonic‑type. The liquid level readings obtained by the sensors are transmitted wirelessly to a data platform, enabling real-time monitoring of groundwater levels.

　　Product Features of Manhole Level Gauges

　　■Durability: Military-grade components, IP68-rated for water resistance, with a service life of over 5 years.

　　■Easy maintenance: Low-power circuit design, integrated battery and host unit, with the complete system installed underground, facilitating both installation and upkeep.

　　■Strong compatibility: Manhole level gauge It is compatible with various transmission signals, including 2G, 3G, 4G, and NB‑IoT, and can be equipped with backend server software; it also features internal data storage capacity for up to 50,000 records.