ControlByWeb
X-21s Four Relay Form C / SPDT Expansion Module

X-21s expansion module with four relays can be controlled over the internet with an X-400 or X-600M controller.

Manuals & Documentation

Users Manuals

X-21s Users Manual (PDF) (Rev: 1.0. 2.1 MB)

Where to Buy

Click "Buy Online" to view part numbers and pricing. X-21s is available in the USA and internationally, and can be purchased either from us or an Authorized Distributor.