Easy-to-use Interface: The sensor features a user-friendly interface that simplifies data collection and analysis, making it accessible for students of varying technical abilities. Measures Key Parameters: With MKRsensors, students can readily measure essential water quality indicator such as conductivity. Durable and Reliable: Built for educational environments, the MKRsensors is designed for long-lasting use, ensuring dependable data collection for numerous experiments. Hands-On Learning: Fosters active engagement in scientific investigation, allowing students to design experiments, collect real-world data, and analyze results effectively. Supports Environmental Awareness: By directly analyzing water samples, students gain a deeper appreciation for the importance of water quality and the impact of human activities on aquatic environments. Works with Arduino or other ADC. Spec Range: 0-3000uS +/- 2% Power: 5v Output: 0-4v Calibration: Trim pot Connections: 5 pins (two for OLED display and three for power and output.) Electrode: Graphite tips. Plastic body. Submersible. K=1 with 4 ft of cable. Temperature compensated: Yes, built in 10k NTC. Here is an Arduino Uno sample sketch Feel free to modify and play with it. Good luck! #include Wire.h #include Adafruit_GFX.h #include Adafruit_SSD1306.h // OLED display width and height, change if necessary #define SCREEN_WIDTH 128 #define SCREEN_HEIGHT 32 // Declaration for SSD1306 display connected using I2C #define OLED_RESET -1 Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, Wire, OLED_RESET); // Define pin connections const int voltageSensorPin = A1; // Analog pin to read voltage float voltage = 0000; void setup() { // Initialize the OLED display if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { Serial.println(F("SSD1306 allocation failed")); for (;;); // Don't proceed, loop forever } display.clearDisplay(); display.display(); // Initialize pins pinMode(voltageSensorPin, INPUT); // Print initial message display.setTextSize(2.9); display.setTextColor(SSD1306_WHITE); display.setCursor(0,13 ); display.println(" MKRsensor"); display.display(); delay(4000); // Display initial message for 2 seconds } void loop() { // Read the voltage from the sensor int sensorValue = analogRead(voltageSensorPin); voltage = sensorValue * 5000.0 / 1024, 2 ; // Assuming a voltage divider with a 10:1 ratio // Display the voltage and set point on the OLED display.clearDisplay(); display.setCursor( 0, 13); display.print(" uS:"); display.print(voltage,1); display.display(); delay(500); // Update delay }