A surface sensing thermostat providing temperature control and temperature limiter in safe areas. The high limit cut-out prevents the heating system exceeding a preset maximum temperature should the control function fail to operate or an unsafe process temperature occur. Temperature set point adjustment and limiter reset can be completed, without opening the enclosure, via removable plugs in the lid. Both 2 meter long stainless steel fluid filled bulb and capillary are protected at the enclosure by a flexible conduit. Direct connection of the heating cable is possible. The thermostat is available in 3 temperature ranges. 0–50°C; 0–200°C; 50–300°C.