257 iSolar Ax

Description:
A basic differential temperature controller for solar heating systems with 1 relay output.
Complete with 2 input sensors and power cord.

Power supply:  115V
Power consumption:  4A
Rating of relay contacts:  2A
ΔT adjustment range:  4 – 30°Ra

Features:
– LED system function display
– 2 temperature sensor inputs
– 1 output relay for pump or valve control
– Freeze protection
– Adjustable min collector temperature
– Adjustable max storage tank temperature