Overpass tunnel ponding water level monitoring device

The utility model provides an overpass tunnel ponding water level monitoring device, belongs to overpass tunnel ponding monitoring devices field for the traffic. Its characterized in that: including the casing, at casing upper portion device control ware, the controller number of pass is according to line connection signal transmitter, set up the water inlet at chassis bottom, it surveys the water level unit to set up the resistance -type in the casing. The water level unit is surveyed for the resistance -type to the main measurement water level part of this device, the resistance -type is surveyed the water level unit and is passed through the casing inflow, the valve that promotes to float shifts up, the guide pillar drives the resistance strip and further inserts in the middle of two contacts, the access length escalation of resistance strip thereupon, resistance in the circuit is crescent, the controller converts into corresponding water level value with the resistance value, reach the mesh of automated i