It will Replace any  two wire (R and W ) or Battery powered controller Thermostat Controller 

Work for any two wire( R and W ) Braemar,  Brivis, Omega,  Bonaire, heater heating

This controller come with Programmable timer. so can set a time to Automatic turn on itself in the morning, 

Temperature control 

so you can Set what time heater on/off，

 

or any temperature you want.