Digital Temperature Sensor KY-028 for Arduino, it measures temperature changes based on the thermistor resistance. This module has both digital and analog outputs, there’s a potentiometer to adjusts the detection threshold on the digital interface.
The KY-028 consist of a of a NTC thermistor, a LM393 dual differential comparator a 3296W trimmer potentiometer, six resistors and two indicator LEDs. The board features an analog and a digital output.
|Operating Voltage||3.3V to 5.5V|
|Temperature measurement range||-55°C to 125°C [-67°F to 257°F]|
|Board Dimensions||15mm x 36mm [0.6in x 1.4in]|