4 Channel Opto-Isolator Card
79.00 79.00 79.0 USD
Eight 24VDC Relay Card
85.00 85.00 85.0 USD
Voltage To 4-20mA Converter
85.00 85.00 85.0 USD
Mini DC Motor Speed Controller in Box
86.95 86.95 86.95 USD
Engine Start Attempt and Alarm Relay
89.95 89.95 89.95 USD
TCW122B-RR - Remote relay control across a LAN
119.99 119.99 119.99000000000001 USD
Akytec SMI2 Modbus RS-485 Red Indicator (24x48mm)
124.99 124.99 124.99000000000001 USD
Digital Humidity and Temperature Datalogger
126.50 126.50 126.5 USD
USB/RS485 Relay I/O Controller (Relayduino)
129.00 129.00 129.0 USD
Modbus Datalogger
135.95 135.95 135.95 USD
USB Serial Stepper Motor Controller
139.00 139.00 139.0 USD
Modbus I/O Module 8-28 VDC Powered
139.00 139.00 139.0 USD