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Shelly i4 Gen3
Shelly i4 Gen3 - Image 2
Shelly i4 Gen3 - Image 3
Shelly i4 Gen3 - Image 4

Shelly Smart Home

SKU: FG3800235261828

Shelly i4 Gen3

10.240 JOD

3 Years Manufacturer Warranty

Wi-Fi-operated 4-digital input controller

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  • Wi-Fi-operated 4-digital input controller

Reference

Technical specifications

Every value below is sourced from the manufacturer datasheet. Engineering-first hardware, documented down to the last gram.

01

Physical

  • Size (HxWxD)
    37x42x17 mm / 1.46×1.65×0.66 in
  • Weight
    18 g / 0.63 oz
  • Screw terminals max torque
    0.4 Nm / 3.5 lbin
  • Conductor cross section
    0.2 to 2.5 mm²/ 24 to 14 AWG (solid, stranded, and bootlace ferrules)
  • Conductor stripped length
    6 to 7 mm /0.24 to 0.28 in
  • Mounting
    Wall console / In-wall box
  • Shell material
    Plastic
02

Environmental

  • Ambient working temperature
    -20°C to 40°C / -5°F to 105°F
  • Humidity
    30% to 70% RH
03

Electrical

  • Power supply
    110 – 240 V~ 50/60 Hz
  • Power consumption
    < 1 W
04

Sensors, meters

  • Internal-temperature sensor
    Yes
05

Wi-Fi

  • Protocol
    802.11 b/g/n
  • RF band
    2401 – 2483 МHz
  • Max. RF power
    < 20 dBm
  • Range
    Up to 50 m / 165 ft outdoors, up to 30 m / 99 ft indoors (depending on local conditions)
06

Bluetooth

  • Protocol
    4.2
  • RF band
    2400 – 2483.5 MHz
  • Max. RF power
    < 4 dBm
  • Range
    Up to 30 m / 100 ft outdoors, up to 10 m / 33 ft indoors (depending on local conditions)
07

Microcontroller unit

  • CPU
    ESP-Shelly-C38F
  • Flash
    8 MB
08

Firmware capabilities

  • Webhooks (URL actions)
    20 with 5 URLs
09

per hook

  • Scripting
    Yes
  • MQTT
    Yes
  • Encryption
    Yes

Works with

Plays well with the platforms you already use.

Connect over Wi-Fi, Bluetooth, or Matter and control from any of the major ecosystems.

  • Amazon Alexa Voice
  • Google Home Voice
  • Apple Home iOS / iPadOS
  • Matter Standard
  • Home Assistant Open source
  • SmartThings Samsung

Real scenarios

See Shelly in action.

Lighting

Scenes that follow the day

Warm light at 6 PM, blue daylight at 9 AM — schedule once, forget forever.

Read the guide
Energy

See every watt in real time

PM-series devices stream consumption so you can spot the AC unit eating your bill at 3 AM.

Read the guide
Security

Alerts that reach your pocket

Door/window sensors, flood detectors, and H&T probes push notifications the second something changes.

Read the guide

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