This Siemens RS540 Electronic Room Sensor is a high-quality product with a range of features that make it a great addition to any HVAC or refrigeration system. It has a battery power source and is compatible with a range of air conditioning units. The item is made of metal and has a connection size of 1-1/8 inches.

In addition, the sensor has a gray color and measures 7 inches in diameter. It is compatible with Siemens products and has a unit weight of 2 pounds. The model number is RS540 and it comes with a California Prop 65 warning. This electric room sensor is a must-have for anyone looking to upgrade their HVAC or refrigeration system.

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