{"product_id":"mcdonnell-miller-153828-lwco-pse-801-u-120-probe-control","title":"McDonnell \u0026 Miller 153828-LWCO PSE-801-U-120 Probe Control","description":"\u003cp\u003eProtect your boiler system from the hazards of low-water conditions with the \u003cstrong\u003e153828-LWCO\u003c\/strong\u003e probe control. Engineered by McDonnell \u0026amp; Miller, the \u003cstrong\u003ePSE-801-U-120\u003c\/strong\u003e model provides highly reliable, electronic water level monitoring to ensure that burners only fire when adequate water levels are present, effectively preventing dry-firing and costly equipment damage.\u003c\/p\u003e\u003cp\u003eThis probe control utilizes advanced conductivity sensing technology to detect the presence of water within the boiler vessel. By completing an electrical circuit through the probe sensor in the water, the control signals the system that it is safe to operate. If the water level drops below the probe, the circuit is broken, immediately cutting power to the burner to safeguard your investment.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Sensing:\u003c\/strong\u003e Electronic probe-based detection for rapid, reliable response times.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Integration:\u003c\/strong\u003e Automatic burner lockout functionality during low-water events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Operation:\u003c\/strong\u003e Designed specifically for seamless integration with 120V boiler control systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Primarily used in commercial and industrial boiler applications, steam heating systems, and hydronic heating setups where high-precision, low-maintenance water level monitoring is critical for boiler longevity.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43125839528030,"sku":"153828-LWCO","price":358.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/153828_LWCO_image_44656798-34f9-4032-8368-a388fbeb9aae.png?v=1786039295","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-153828-lwco-pse-801-u-120-probe-control","provider":"National Boiler Supply","version":"1.0","type":"link"}