Designed to indicate the temperature according to the liquid expanding coefficient, so that you can always check the temperature without electrical equipment, by installing a sensor where you want to check the temperature. 

You can check the temperature form -40°C to 120°C with this product. The Low-temperature applications are for the freezer, freezing warehouse, agricultural greenhouse, icehouse and the High-temperature applications are for a water heater, boiler, sauna etc

TMSA Rainbow Capillary Thermometer
The TMSA Rainbow Capillary Thermometer
TMRC Rainbow Capillary Thermostat
The TMRC Capillary Thermometer
TMRB Rainbow Thermometer
The TMRB TMRB Rainbow Thermometer