Low Cost PID Temperature ON/OFF Controller

This thermal controller offers some basic features with limited configuration options, it is for much less demanding application, despite it's cost-effective nature, still it offers Relay, SSR Drive and analog output, analog output being at the same price with the relay and SSR Drive output, maximum 2 alarms and heating+cooling control at the same time are possible, the alarm output can be used as a sub output to control a fan or valve in a system, TC/RTD and analog inputs compatible, 24VDC source and 85~265Vac source optional