Size (HxWxD)

26 x 19.95 x 8.5 mm / 1.02 x 0.79 x 0.34 inch

Weight

3 g / 0.11 oz

Shell material

Plastic

Shell color

White

ENVIRONMENTAL

Ambient working temperature

-20 to 40 °C / -5 to 105 °F

Humidity

30 % - 70 % RH

ELECTRICAL

Power supply

5 V⎓ (from USB Type-C port)

Power consumption

< 1 W

INPUT CIRCUITS RATINGS

Digital inputs triggering voltage

Active LOW;

Trigger low: < 0.83 V

Trigger high: > 2.48 V

Digital inputs max. voltage

3.3 V

OUTPUT CIRCUITS RATINGS

Max. switching voltage

3.3 V (logic-level)

Max. switching current

20 mA

SENSORS, METERS

Voltmeter (DC)

0 V - 2.5 V (Built-in)

0 V - 30 V (Requires external Addon)

Voltmeter accuracy

±(2% + 5d)

Internal-temperature sensor

No

External sensors supported

single DHT22

up to five DS18B20

RADIO

WI-FI

Protocol

802.11 b/g/n

RF band

2401   - 2483 МHz

Max. RF power

<   20 dBm

Range

Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions)

BLUETOOTH

Protocol

BLE 4.2

RF band

2402 - 2480 МHz

Max. RF power

< 10 dBm

Range

Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors
(Depends on local conditions)

MICROCONTROLLER UNIT

CPU

Shelly ESP32 C3 (ESP-Shelly-C38F)

Flash

8MB

FIRMWARE CAPABILITIES

Schedules

20

Webhooks (URL actions)

20 with 5 URLs per hook

Scripting

Yes

MQTT

Yes

Encryption

Yes

Other

Supported Accessories:

Cable adapter - 3.5mm Jack (incl. in the package)

Splitter 1 to 5 - 3.5mm Jack

Temperature sensor DS18B20 - 3.5mm jack

Supportedadd-ons:

5-terminal Add-on

SSR Add-on

Analog 0-30V Add-on