PT100 Platinum Resistor Temperature Sensor

5mm Pin Spacing Right Angle PCB mount Screw terminals. 5mm Pin spacing x 12.6mm(H) 

24Way Single Row Pin Header. Gold pins, Cuttable to shorter length (loose 1 pin every cut). 2.54mm pitch (0.1")

Tactile Switch Panel PCB Mount Momentary TACT Switch Push Button for Arduino 6x6x10mm (Pack of 5 Pcs)

40-Way Square Gold straight Pin Header 2.54mm for PCB. Compatible with DUPONT system. Header is 40 way with easy break slots between the pins...

Dupont Cable 200mm Male to Female, 10 Way

Input to each relay is Optically isolated. 5V coiled Relays. Output switch is 10A @ 125V rated