CABLE3CBL Datasheet PDF - Campbell Scientific United Kingdom

LR4 4-Channel Latching Relay Module

   The LR4 Four-Channel Latching Relay Module is ideal for locations where power is unreliable or needs to be conserved. Unlike traditional relays that must be continuously powered to keep their state, the LR4 mechanically latches the relay’s state allowing power to be removed. The only way to change the state of a relay is to send a command to the LR4 or to press the manual toggle button. The datalogger sends commands to the LR4 via the SDI-12 protocol or ModBus protocol.

FEATUREs
• Low power consumption
• Relay state is nonvolatile
• 4 channels
• LED indicators
• Manual toggle override for each relay
• Compatible with all SDI-12 capable dataloggers