McDonnell & Miller P1SS Liquid Level Control Sensor ProbeMcDonnell & Miller P1SS Liquid Level Control Sensor Probe is a rugged 12 inch Type Probe designed for RS Series Liquid Level Control Sensor applications. Crafted from 316 stainless steel, this probe resists corrosion and delivers reliable performance in boiler, condensate, and wash water environments. As the essential Type Probe for the RS Series Liquid Level Control Sensor, the P1SS provides accurate level detection, helping to prevent overflows,

It operates over a broad range

and service bays

The rugged NEMA 4/4X enclosure and explosionproof (NEMA 7) construction protect it in harsh settings

000 BTU gas

Ideal for professional installers and diligent homeowners

it provides a compact

system stability

or hot-water services

Durable Design: Built for long-term reliability

Resilient materials withstand temperature fluctuations and wear

Whether you're upgrading

a wide sensing range