Lm393 Indicator Light 1 Channel Digital Humidity Sensor Relay Module TL With this Universal Soldering Flux

With this  Universal Soldering Flux oxidixed

Dimmable: Adjust the brightness to suit your needs

Polarized Design: Although ensure proper installation with positive and negative terminals clearly marked

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Lm393 Indicator Light 1 Channel Digital Humidity Sensor Relay Module TL With this Universal Soldering FluxFeatures: using high quality HR202 humidity sensor ; the comparator outputs directly drive relays or other devices connected to 220V AC ; adjust the temperature distribution bit detection threshold the sensor interface can be installed the pin, plus humidity sensor with leads ; circuit board external dimensions: 50x26mm, thickness 19mm, 3mm bolts with four holes for easy installation Electrical parameters: Supply voltage: 5VDC or 12VDC ( default hair