Relay Drivers
Provide power to external devices
Current Products
No Retired
A6REL-12 Relay Driver
The A6REL-12 has six internal relays for controlling up to 12 external AC or DC devices. Each relay set can be controlled manually or by...
A21REL-12 Relay Driver
The A21REL-12 contains four internal relays that allow a Campbell Scientific datalogger to control up to four external ac or dc devices.
LR4 4-Channel Latching-Relay Module
The LR4 relay module is useful in situations where the power is unreliable or where power needs to be conserved, because it does not need...
7321 SPST Single-Channel Solid State Relay, CRYDOM D1D07
The 7321 is a single-channel, solid-state relay that allows a datalogger to control one or two ac or dc devices.
Resources and Links
About Relay Drivers
Relays are devices that can provide power directly to external devices that have modest power requirements, such as the small fans used in our Bowen ratio systems. Alternatively, these relay drivers can provide control signals to heavy-duty external relays that in turn can control power to heavy-duty, high-power equipment such as ventilation fans, aquacultural aerators, refrigeration units, or other electrically powered machinery.
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