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SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions
SK108H : 1W 4 Channel Wireless Relay Module  With Hopping Functions

SK108H : 1W 4 Channel Wireless Relay Module With Hopping Functions

  • SK108H is a industrial 4 channels wireless relay module with hopping function, it provides maximum four channel signal input and maximum four channel control output. It features simple interface and reliable performance. The parameters can be modified by PC software / UART command / remote controller (SK108-S). DIP switch on the module can used to change operating frequency (maximum 16 group), operation mode etc. Using this module, user can replace wired device with the wireless connection, which significantly reduce the cost and save much time.
  • SK108H strictly uses lead-free process for production and testing, and meets RoHS and Reach standards.

Note: Below parameters base on 12V power supply/ 25℃ testing environment.

Parameters Min. Typ.  Max. Unit Condition
Working Condition
Voltage range 9 12 30 V  
Operating Temperature -40 25 +85  
Current Consumption
Rx current   <20   mA  
Tx current   <200   mA  
Sleep current   <5   mA @12V Timing mode Non transmitting
RF Parameters
Output power   30   dBm  
Sensitivity   -121   dBm  



Interface I/O
Channel 4 channel
Communication Two-way
Open distance (km) 2.5~3

Features of Wireless Relay Module SK108H

  • Frequency hopping algorithm
  • Up to 3Km line-of-sight in open area
  • 16 predefined channels
  • Parameters configurable by PC software/ Remote controller/ UART Command
  • Real-time/Timing working mode for optional
  • GFSK modulation
  • Bi-directional wireless switch control
  • Anti-interference
  • Sensitivity up to -121 dBm
  • Maximum output power: 1 W
  • Indicate and alarm when battery low
  • Working voltage 9 ~ 30 V
  • Working temperature range: - 40 ~ + 85 ° C
  • Weight: 143g

Application of Wireless Relay Module SK108H

  • Remote control switch control
  • Security system
  • Home automation remote sensing
  • Wireless remote telemetry
  • Building automation and security
  • Access control system

 

Typical application of wireless relay module SK108H

Pins of wireless relay module SK108H

 

Pin NO. Pin Description
1 GND Power Ground
2 VCC Connect to positive power
3 IN1 Ch1 input, internal pull up
4 GND
5 IN2 Ch2  input, internal pull up
6 GND
7 IN3 Ch3 input, internal pull up
8 GND
9 IN4 Ch4 input, internal pull up
10 GND
11 NC Reserved, Non-Connected
12 NC Reserved, Non-Connected
13 OUT1 Ch1 relay control output,
closed: low level in Tx
Open: high level in Tx
14
15 OUT2 Ch2 relay control output,
closed: low level in Tx
Open: high level in Tx
16
17 OUT3 Ch3 relay control output,
closed: low level in Tx
Open: high level in Tx
18
19 OUT4 Ch4 relay control output,
closed: low level in Tx
Open: high level in Tx
20

Mechanical Dimensions of wireless relay module SK108H

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