Liquid Level Controller
The Model 409 Liquid Level Controller offers reliable automatic liquid level management for industrial applications. Its solid-state sensing circuit ensures consistent performance, complemented by adjustable sensitivity ranging from 1K to 100K ohms, allowing precise calibration for diverse media. Designed for durability, this controller features a 10A at 240VAC resistive contact rating and an expected mechanical relay life of 10,000,000 operations. It operates across a broad temperature range of -13° to +140° F and tolerates 0-97% humidity without condensation. The unit's 2-second response time and automatic reset ensure prompt system adjustments. With a 5-year unconditional warranty, the Model 409 provides a dependable solution for critical liquid level control requirements, minimizing downtime and maintenance needs. It supports 24VAC, 120VAC, and 230VAC operating voltages.
Liq Level Control





