Quantity   Component name
1 × ESP-8266 LoLin NodeMCU
1 × 5V 240V Switch Mode PSU
1 × Pressure Sensor Transmitter DC 5V G1/4 0-1.2 MPa / 0-174 PSI For Water Gas Oil
1 × FORTEK SSR-40DA Solid State Relay
1 × 10K resistor
1 × 15k resistor