ERTIANANG PID Temperature Controller Kit REX-C100 + 40A SSR + K Thermocouple Probe Sensor + Heat Sink Mayitr Temperature Instruments Go to amazon.com Related posts How to find the best rex c100 40a for 2022? DescriptionPID Temperature Controller Kit REX-C100 + 40A SSR + K Thermocouple Probe Sensor + Heat Sink Mayitr Temperature Instruments