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2 * 590 mAh CR2450 Lithium Coin Cell Batteries
Advanced Features: LoRa D2D Controller
NFC Enabled
IP30 Rated
Upto 6 Scenes Buttons
Dual Protocol Operation
Each button of WS156/WS136 can work in LoRaWAN® or Milesight D2D protocol separately.
Multiple Scenes
Customizable Display
One-to-Many Control
Milesight D2D Communication
2 * 590 mAh CR2450 Lithium Coin Cell Batteries
Advanced Features: LoRa D2D Controller
NFC Enabled, E INK Display
IP30 Rated
Upto 6 Scenes Buttons
Dual Protocol Operation
Each button of WS156/WS136 can work in LoRaWAN® or Milesight D2D protocol separately.
Multiple Scenes
Customizable Display
One-to-Many Control
Milesight D2D Communication
R831B is a device used to control the switch and is mainly used for the
switch control of the light electric motor control box.
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