water_level_monitors

Circuit checks swamp cooler water level: 10/31/2002 EDN - Design Ideas / A "swamp cooler" is an easy way to obtain effective air conditioning, especially in hot and dry climates, if a water source is readily available. Although most units are very reliable, the storage-reservoir control usually uses a single level-detector component. Failure of this component can lead to serious water damage..

Digital Water Wave/Tide/Level Meter (PIC16F876):

Simple Emergency Sump Pump Control: Sump Pump Control for12V DC Bilge Pump

Water Activated Alarm:

Water Level Alarm:

Water Level Controller:

Water Level Indicator With Alarm:

Water Level Sensor:

Water-Level Controller:

Water-Level Sensor Uses Hysteresis: 08/21/00 Electronic Design - Ideas for Design / A low-voltage electronic circuit that senses upper and lower water levels is often used for alarms and sump-pump activation. Since an electronic sensor has no moving mechanical parts, it eliminates problems with corrosion and wear and tear. The. . .

Waterpump Safety Guard for Fish-pond: