Orange HD Propellers 1150(11X5.0) Carbon Nylon Black 1CW+1CCW 1pair 10K Thermistor Temperature Sensor Module(4 Pin) Do I need external components Do I need external components to use this IC threshold adjustable via potentiometer) Detection Range 10 1000 ppm (varies by gas type) Preheat Time ~20 seconds (recommended 24 48 hours for initial burn in calibration) Heater Power Consumption <= 800 mW Sensitivity Adjustment Onboard potentiometer for digital threshold tuning Indicator LEDs Power LED & Digital Output Trigger LED Comparator IC LM393 dual comparator Module Dimensions ~32 mm x 20 mm x 22 mm Pin Configuration VCC