Jumo India Pvt Ltd offers Surface-Mounting Twin Thermostat. Jumo India Pvt Ltd is DIN EN ISO 9001 and DIN EN ISO 14001 certified company. Surface-Mounting Twin Thermostat is available as "Surface-mounting twin thermostat [TR/TW/TB/STW/STB], Series ATH". It consists of two separate measuring and switching systems. The instruments are available as temperature controllers TR, temperature monitors TW, and safety temperature monitors STW [STB] and safety temperature limiters STB. In the event of a fault, the STB sets the system being monitored to a safe operational state. The Surface-Mounting Twin Thermostat operates on the principle of liquid expansion, with a micro-switch serving as the electrical switching device.