The SDM-CD8S controls DC devices that have a moderate current load, such as solenoids, solenoid valves, DC motors, stepper motors, lights, horns, heaters, and fans. The SDM-CD8S is targeted for applications requiring onl...

The SDM-CD16D increases the number of digital outputs that can be controlled (i.e., set to 0 or 5 Vdc) by a Campbell datalogger. The SDM-CD16D is commonly used to drive normal logic level inputs. It can also source some ...

The SDM-CD16AC is a synchronous device equipped with relay control ports that control power to each of 16 external ac or dc devices. Each relay port can be controlled automatically by the datalogger's program or cont...

The SDM-IO16 expands the digital input and/or output capability of Campbell Scientific dataloggers. It offers similar functionality to the control ports of our CR10X and CR23X dataloggers. When configured as an input, ea...

The SDM-SIO4 has four configurable serial RS-232 ports that communicate with intelligent serial sensors, display boards, printers, satellite links, and other serial devices. Once programmed, the SDM-SIO4 communicates wit...

The SDM-SIO1 module connects to Campbell Scientific dataloggers using the SDM port and communications protocol. It connects to a remote serial device using industry standard hardware that can be set to true RS-232, RS-48...

The SDM-CVO4 is a synchronously addressed datalogger peripheral that outputs variable voltage or current signals under datalogger program control. Each output can be set to 0-10 Vdc or 0-20 mA by the datalogger program (...

The SDM-AO4 provides four independent continuous analog outputs (0 to +5 Vdc) for proportional control or strip charts. Current sourcing capability is 125 µA. It requires the connected devices to have input impedances in...

The AM25T sequentially connects up to 25 thermocouples or other low-level voltage output sensors to a common differential channel. The output from this channel is wired to a differential input channel on the datalogger. ...

The AM16/32B has replaced the AM16/32A. The AM16/32B supports two clocking modes: Mode A works like the AM16/32A and sequentially advances through each channel. Mode B uses a relay address to go directly to a specific ch...