Manufacturer Name: Honeywell Product Number: T775-SENS-WR OEM Part Number: T775-SENS-WR The Honeywell T775-SENS-WR is a water-resistant temperature sensor designed for versatility in HVAC applications. This sensor functions with a wide voltage range (24/120/240V) and operates within extreme temperatures, from -40°F to 270°F. While the listed weight (1 lb) seems exceptionally high... https://www.partshnc.com/wtrresistantsensor-6-leads-2