Works with most single-stage heating and cooling, 24 volt and millivolt systems. Compatible with standard heating and cooling, standard heat only, millivolt heat only (floor or wall furnaces), standard central air conditioning, gas or oil heat, electric furnace, and hydronic (hot water) zone heat-2 wires. Easy to install and use, mounting hardware and installation guide included. Mercury free. 1 year warranty. No. M150: Voltage: 24V, Color: Off-White, Pkg Qty: 1, Package Type: Clamshell

• With sealed mercury switch.
• Sealed mercury cells provide long life by protecting the switch against dirt and moisture.
• Fan switch for constant or automatic fan operation.
• 50 degrees to 90 degrees F temperature range.
• For most 24 volt applications.

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