The default delivery specification of the sample is an 8-channel 12V NPN output relay module. For other please contact us.
Product features 1. Anti surge performance, protective relay to extend service life. 2. There is a protective circuit. When the polarity of the power supply is wrong, the components are not easily burnt out. 3. Every channel indicator is bright when the action is taken. The relay can be plugged and replaced conveniently.