Can I use this sensor on a standing pilot furnace

The GRD10A-601 is engineered for a precise fit with Johnson Controls T22

You may hear a loud humming

Maintenance-Free Design: The non-linting aerated pilot reduces nuisance service calls by preventing dust and debris buildup in the primary air intake

it's built to handle chilled or hot water

Lochinvar & A.O. Smith 100278092 Switch R-407C Can I use this sensorThe Lochinvar & A. O. Smith 100278092 Switch is a critical safety and operational component designed for high performance commercial boilers and water heaters. As a factory authorized OEM flow switch, this assembly ensures the burner circuit only energizes when adequate water velocity is detected, protecting the heat exchanger from dry fire conditions and thermal stress. The unit comes integrated with a durable brass tee specifically sized for CC120