Shelly · Flush-mounted accessories · “Plus Add-on” · for Plus relays

Add-on for Shelly Plus devices Can be used with up to five DS18B20 sensors or one DHT22 sensor Has one analog and one digital input DS18B20 - temperature sensor (up to 5) Please select the product variant with or without (standard variant is without supplied) DHT22 sensor – if you want to monitor temperature and humidity WHY THE PLUS ADD-ON? Precise measurement and control Shelly Plus Add-on is a galvanically isolated sensor interface for all Shelly Plus relays. Use the add-on to measure temperature and humidity via its 1-Wire connectors or connect various analog and digital sensors for complex automation and greater efficiency. Highly Compatible The Shelly Plus add-on is compatible with most Arduino sensors ! Use the digital or analog inputs to measure your desired parameters and create complex automation scenes based on the sensor data. USAGE EXAMPLES Garage Door Control You can connect a reed switch sensor to the Shelly Plus Add-on's digital sensor and track the status of your garage door. This way you always know whether it is open or closed and can react accordingly.
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WATER HEATING Heat your water to an optimal temperature
Meet your daily needs without wasting anything! With the Shelly PM relays you can determine the optimal energy requirement for heating the water in your water heater. In conjunction with a temperature sensor, the Shelly relays can automatically switch off the water heater when the optimal temperature is reached.
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Keep the Heat in the Home Together with an LDR (photoresistor), the Shelly Plus Add-on can cause the Shelly Plus 2PM to close the blinds when direct sunlight shines on your windows and heats up the room. In this way, the air conditioning system does not have to compensate for the heat through increased power consumption and therefore saves energy. And don't worry about losing the pleasant daylight! As soon as the sun changes position, the blinds automatically open again.
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An awning that follows the weather Motorized outdoor awnings provide your guests with pleasant shade on sunny days. However, a strong, uncontrolled wind can damage them beyond repair. By combining with a wind sensor connected to the Shelly Plus add-on, Shelly Plus 2PM can automatically close the outdoor awning to protect it from wind. Additionally, the Shelly Plus add-on with a rain sensor can cause the Shelly Plus 2PM to open the awning in time to protect your guests.
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Water only when needed A beautiful garden is no easy task, and automating your irrigation system can save you time and optimize your costs. Together with a soil moisture sensor, Shelly Plus Add-on can cause the Shelly Plus 1 to turn on watering only when needed and skip the rainy days.
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Motion Controlled Lights Shelly Plus Add-on can also be connected to a motion detector to illuminate rooms you occasionally use in the house. When you enter the room, the light stays on for as long as you need it. SPECIFICATIONS PHYSICAL Size (HxWxD): 37x42x15 ±0.5 mm / 1.46 x 1.65 x 0.59 ±0.02 in Weigh: 105 g / 3.70 oz Shell material: Plastic Color: Black ENVIRONMENTAL Ambient temperature: -20 °C to 40 °C / -5 ° F to 105 °F Humidity 30 % to 70 % RH Max. altitude 2000 m / 6562 ft ELECTRICAL Power supply voltage AC: N/A Power supply voltage DC: 3.3 V (from Shelly plus device) Power consumption: OUTPUT CIRCUITS RATINGS VCC max Current: 10 mA VREF OUT max reading: Depends on the DHT22 sensor Digital input: -15 V to 0.5 V (True) / 2.5 V to 15 V (False)* Analog input range: 0 to 100% Analog input report threshold: 1% Voltmeter range: 0 to 10 V Voltmeter report threshold: 0.1 V Analog input / Voltmeter accuracy Better that 5%