- Cedar Rapids, Iowa, United States
- US $25.00
- Jan 29th
The Model LD1-24 and the AQS models are small electronic control relays for detecting a rising water level in HVAC and Building Automation System, BAS, applications. Inside a waterproof enclosure, the water level detector features a medium-power relay, which is operated by water reaching the trip level, and can be used to control alarms or other equipment. The relay is normally energized when the power supply is switched on and no water is present.