The 48-3002 is a smart-hydrostat that operates at 24V and 100 to 190°F temperature range.  It is designed to function as a temperature limit control, low water cut-off, and boiler reset control.  The unit is UL-listed.

The smart hydrostat is ideal for use with cold start boiler applications.  It conserves fuel using Thermal Targeting technology by adjusting boiler temperatures based on heating demand.  The device features built-in operating indicators with LEDs and a test button for easy status checks.

The 48-3002 is easy to install with dial-type settings and does not require external sensors.  It’s designed to replace common high-temperature aquastats and comes with a 48"  temperature sensor.  This replaces part number 48-3001 Hydrostat.