This precisely developed Transformer Winding Temperature Indicator has IP55 protection rating and it can be operated under -40 degree C to 55degree C temperature range. This type of temperature indicator is needed to safeguard transformer against overheating. It is capable of registering highest temperature rise of transformer windings and oil. This product is also capable to trip circuit breaker of transformer. Cooling mechanism of transformer is also regulated by such Transformer Winding Temperature Indicator. It comprises of sensing bulb which is located inside oil filled pocket of transformer tank. Highly flexible capillary tubes are used to connect this bulb with the housing of transformer. Quality of this product has been verified on the basis of its strength, longevity, design and mechanism.