Click to expand Tap to zoom 86900100: ESBE TSA121 Contact Thermostat 40-70C 230V STB by ESBE SKU 86900100 ESBE TSA121 40-70C 230V STB Internal and External setting On/Off principle Easy installation The ESBE TSA100 is a ON/OFF thermostat, consisting of temperature probe connected to a switch. The switch can be used to control ON/OFF, based on the temperature measurement, any electrical device e.g. pump, boiler, etc. ESBE | TSA100, Contact thermostat Accessories