Reliability, accuracy and durability. This is the basic idea behind the design of the HD2013. FullyThe HD2013 is made entirely of corrosion-resistant materials and can withstand even extreme conditions.To ensure a wide range of applications, a choice can be made between a heated and an unheated version, depending on the environment in which the rain gauge is used.The principle of a tipping bucket rain gauge is simple: depending on the amount of precipitation, the tipping bucket fills and empties.fills and empties. With each tipping operation, a reed contact is actuated: In this way, the amount of precipitation. This means that the tipping bucket has an enormous advantage: it does not need a power supply for its operation.a power supply is only necessary if circumstances require heating due to low ambient temperatures.