Sonoff 4CH Pro Manual

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Sonoff 4CH PRO data JAN 2018
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PCBA Size:122.2*87.2*1.2mm
Product Size: (L)14.5*(W)9.5*(H)4cm
Hardware
Working Mode
Sonoff 4CH Pro supports to work 3 modes: self-locking mode, inching mode and interlock mode.
1. In self-locking mode, users can turn on/off the 4 connected devices independently. For example, if
users turn on CH1, connected device keeps on. If users turn off CH2, connected device keeps off.
2. In inching mode, users can turn on the connected devices for 0.25-4s. For example, users can turn
on CH1 connected device for 1s, then auto-off.
3. In interlock mode, users can turn on 1 device every time, and turn off other devices at the same time.
For example, if users have turned on CH2, then when they turn on CH3, CH2 will be auto-turned off at
the same time.
We will introduce how to switch among the 3 modes below:
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Sonoff 4CH Pro Specifications

General

Channels	4
Wi-Fi Standard	802.11 b/g/n
Max Current	10A per channel
Max Power	2200W per channel
Operating Temperature	-10°C to 40°C
Operating Humidity	5%-90% RH, non-condensing
Material	PC V0
Certification	CE, FCC, RoHS
Voltage Range	90-250V AC
Dimensions	145 x 90 x 40 mm