1 aluminum plates 2mm thick Laser...
12V DC Digital Thermostart controller Can be configured to control environement Heat or cold (not both). The realy will swich depending if you are in heating mode of cooling mode. Temperature range: -50°C / +110°C
Required if using the power fan output to drive the 2nd hot end heater. Can drive 2 fans (max 20V, 0.5A per channel)