The Wi-Fi Pool Kit reads pH, ORP, and temperature. The pH readings are automatically temperature compensated and uploaded to ThingSpeak, which allows for remote readings on a phone, tablet or PC. Remotely monitor and control your Pool's chemistry. Access to data on phone, tablet or PC Operating voltage : 5V I2C mode only The Wi-Fi Pool Kit reads pH, ORP, and temperature. The pH readings are automatically temperature compensated and uploaded to ThingSpeak, which allows for remote readings on a phone, tablet or PC.