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this is a permanent magnet tool and does not require any external power or batteries
allowing for precise fluid temperature monitoring without risking direct contact between the sensor and the medium
For high-temperature steam service
it provides the necessary phase shift for both the compressor and the condenser fan motor
McDonnell & Miller 304300 Snap Switch Els PW 17895 this is a permanent magnetThe McDonnell & Miller 304300, also identified as the FS1 17 Snap Switch Assembly, is the critical single pole, double throw (SPDT) replacement component designed for Series FS1, FS4 3D, FS5, FS6, and AFE 1 liquid flow switches. This industrial grade switch is engineered specifically for high sensitivity applications in hydronic heating and HVAC systems where detecting low or moderate flow rates is vital for system protection. As an OEM replacement
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