McDonnell & Miller P-1-SS Probe Rod

The McDonnell & Miller P-1-SS Probe Rod (Part Number 179530) is a critical component for high-precision liquid level control in hdyronic and steam systems. Engineered from 12-inch 316 stainless steel, this probe rod provides superior corrosion resistance and structural integrity for long-term immersion in boiler environments. Designed for seamless integration with RS series sensors, the P-1-SS is commonly utilized with PCH, PCL, and LPC-2000 liquid level controllers to ensure accurate sensing and system protection. Its robust construction minimizes the risk of signal drift and false positives, maintaining tight tolerances in commercial and industrial HVACR applications. When replacing older or fouled rods, this 1/2" NPT-compatible shaft ensures a reliable conductive path to the sensor head, preventing erratic burner behavior or dry-fire conditions. For technicians performing routine maintenance, this 12-inch stainless steel probe is the industry standard for low water cut-off (LWCO) sensitivity and response.

• 316 Stainless Steel Construction: Offers maximum resistance to pitting and chemical corrosion in treated boiler water.
• RS Series Compatibility: Purpose-built for McDonnell & Miller RS sensors and automated liquid level controls.
• Precision Level Sensing: Provides accurate conductive signals to LPC-2000 and PCH/PCL series units.
• Versatile Application: Suitable for both steam and hot water systems across commercial and industrial environments.

Can the P-1-SS probe be cut to a shorter length?
Yes, technicians can field-cut the 12-inch 316 stainless steel rod to meet specific tank depth requirements, provided the conductive tip remains clean and free of burrs.

Is this probe rod compatible with other sensor brands?
While designed specifically for McDonnell & Miller RS sensors, it features standard threading; however, we recommend use with OEM controllers like the LPC-2000 for verified accuracy.

Does this rod include the Teflon insulator?
This part number (179530) is the replacement probe rod itself. If your existing sensor head insulator is cracked or fouled, the entire sensor assembly may require inspection or replacement to prevent false grounding.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.