The LongReach 4-Channel Relay Module, combined with the LongReach Digital Transmitter Module, enables control of up to four electrical devices over extended distances. Based on LoRa technology its range surpasses common wireless technologies like WiFi or Bluetooth, making it perfect for use in areas such as garages, outbuildings, and similar remote locations.
Expandable with Multiple Modules
The modules come with dip switches that let you choose from 256 available channels. A relay module will respond to any Digital Transmitter set to the same channel, allowing you to either use multiple transmitters with one relay module or control multiple relay modules with a single transmitter.
Additional Features
Both modules are designed with screw terminals for simple connection of inputs, outputs, and 5V power—no soldering required. A power/communication LED indicator lights up when the modules are powered and blinks during transmission. The relay module also features four additional LEDs to display the status of each relay.
Specifications:
Product code: HCMODU0248 Supply voltage: 5V Supply current: 9mA (idle), 120mA (Tx) Number of inputs: 4 x independent clean contact inputs Radio type: LoRa RM95 Range: >1 kilometre in free air Frequency: 868MHz Number of channels: 256 Dimensions (ex antenna): 50mm x 32.5mm x 14mm
Optional Monitoring and Control
Although the Tx and relay modules will function on their own, you can also monitor or control them through a microcontroller or computer using our LongReach USB and LongReach mLink modules. For more details, refer to the device listings.
Dimensions:
Disclaimer:
As with all wireless devices, external factors such as range and interference may cause transmissions to be corrupted or blocked. Therefore these devices should not be used in applications where control or monitoring is a critical requirement.
Libraries, example code, and diagrams are provided as an additional free service by Hobby Components and are not sold as part of this product. We do not provide any guarantees or warranties as to their accuracy or fitness for purpose.