Purchase of Electronic Self-recording tidal staff gauge, including detailed demonstration of the equipment to the officers concerned, one each for all three sections under Coastal Engineering Sub division Ernakulam

Supply of Automatic Staff Gauge Recorder, to record the water level variations of a place using capacitive rod principle with the following specifications Data to be recorded: Water level variations at accuracy of 4mm. Digital separation of fluctuating water level: Provision to digitally separate the sudden fluctuations in water level and record the average water level fluctuations in rivers, lakes or other water bodies. Local data storage: SD card with facility to down load the data to computer or smart phone. Specification of the type of sensor used: Capacitance Rod type Water Level Recorder for small water columns up to 2 meters. Sensor measures the water level fluctuations in small creeks, streams, or other water body with high accuracy. Range: 0 to 200 cm. Accuracy: +/- 4mm. Free from: Atmospheric pressure compensation and temperature effect. Material: Stainless steel and plastic. Output: 0 to 5 volt Atmospheric pressure and temperature compensation: Inbuilt facility.