Price:
$1283.00
SE
HUXI HLC-2508 Vertical High and Low Temperature Thermostat
-25~100℃8LInternal/external circulation

$1687.00
SE
HLC-2008G Vertical High and Low Temperature Thermostat
-25~200℃8LInternal/external circulation

If you don't know how to choose "Thermostat", please consult customer service.