Kf45 Kf-45 3 Pin Power Connector 25 Amp Pcb Mount Power Connector Delay Timer Relay Just power the module with

Just power the module with 5V set the threshold and you can start getting the gas concentration of the air around the sensor

pulse-steering flip flop

Meter has Low voltage indicate

Input Hysteresis Improves Noise Immunity

UNI-T UT33 series is kind of palm size handheld pocketaable digital multimeter

Kf45 Kf-45 3 Pin Power Connector 25 Amp Pcb Mount Power Connector Delay Timer Relay Just power the module withKF45S Barrier Terminal Block 9. 5mm Spacing9. 5mm spacing barrier terminals with side expandable slot. The terminal accepts wire gauge of 22~12AWG. Connectors are available in black PA66 material. Brief Data: Voltage Rating: 300V. Current Rating: 25A. Wire Gauge: 22~12 AWG. Pin Spacing: 9. 5mm. Number of Poles: 2~24 (Stackable) Housing Material: PA66UL94V 0. Solder Pin: Tinned Brass. Screw: M3 Steel Nickel plated. Mounting Type: PCB thru hole. Rated