The
Analog pH Sensor Kit is specially designed for Arduino controllers and
has a built-in simple, convenient, and practical connection and
features. It has an LED that works as the Power Indicator, a BNC
connector, and a PH2.0 sensor interface. To use it, just connect the pH
sensor with the BNC..
This LM393 Photosensitive Light-Dependent Control Sensor LDR Module is using a high-quality LM393 voltage comparator. Easy to install using the sensitive type photosensitive resistance sensor the comparator output signal gives a clean and good waveform.Driving ability is 15mA with the adjustable pot..