General
Type	Value
Electrical
Power supply	8-24 VAC 9-28 VDC 5 VDC (stabilized, via +5 VDC and GND)
Power consumption	< 1 W
Environmental
Ambient temperature	-20 °C to 40 °C / -5 °F to 105 °F
Humidity	30 % to 70 % RH
Firmware capabilities
Schedules	20
Webhooks (URL actions)	20 with 5 URLs per hook
Scripting
MQTT
CoAP
Input circuits ratings
Digital inputs resistance	50 kΩ
Digital inputs triggering voltage	1.5 V (active low level)
MCU
CPU	ESP32-U4WDH
Flash	4 MB
Output circuits ratings
Max switching voltage	30 V
Max switching current	300 mA
Physical
PCB size (LxWxH)	40x21x7 mm / 1.57x0.83x0.28 in
Weight	8.5 g / 0.3 oz (with the cables)
Radio
RF band	2400 - 2495 MHz
Max. RF power	<20 dBm
Wi-Fi protocol	802.11 b/g/n
Wi-Fi Range	Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors , (Depends on local conditions)
Bluetooth Protocol	4.2
Bluetooth Range	Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors , (Depends on local conditions)
Sensors, meters
Voltmeter	0-15 VDC / 0-30 VDC (Two-range)
Voltmeter accuracy:
Pulse counter input triggering voltage	1.5 V (active low level)
Pulse counter max frequency	1 kHz
External sensors supported	Single DHT22 or up to five DS18B20

Smart Wi-Fi Controlled Module Designed for low voltage installations, this small device offers advanced automation and insightful monitoring. Ideal for a wide range of homes, Shelly Plus Uni opens up a range of smart possibilities for your home appliances.No hub required! Easy control via the Shelly Smart Control app, most platforms and protocols, and voice assistants. Use it with Alexa, Home Assistant, or your favorite automation platform Suitable for small appliances with low voltage AC and DC applications (8-24 VAC, 9-28 VDC, and 5 VDC) Features two digital and 1 analog input Supports 1-wire sensors (one DHT22 and up to 5 DS18B20) 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 Receive precise measurement data from your energy/gas/water meter (or any other meter that supports pulse counting via external sensors) WiFi range extender Dimensions (LxWxH) 37x42x16 mm / 1.46x1.65x0.63 in (without cable) Weight 8.5 g / 0.3 oz Ambient temperature -20 °C to 40 °C / -4 °F to 104 °F Humidity 30 % to 70 % RH Power supply 8-24 VAC / 9-28 VDC / 5 VDC (stabilized, via +5 VDC and GND) Power consumption WiFi RANGE (DEPENDS ON LOCAL CONDITIONS): up to 50 m / 160 ft outdoors up to 30 m / 100 ft indoors"" Bluetooth Protocol 4.2 BLUETOOTH RANGE (DEPENDS ON LOCATION): up to 30 m / 100 ft outdoors up to 10 m / 33 ft indoors CPU ESP32 Flash 4 MB Schedules 20 WebHooks (URL Actions) 20 with 5 URLs per WebHook Scripting Yes MQTT Yes Customer Reviews