Review on 🌡️ HiLetgo 5pcs DS18B20 Stainless Steel Waterproof Temperature Sensor Pack with 1M Probe by Johnathan Hegie

These sensors are easy to connect and there are many options for getting readings for Arduino based platforms. I use at least one of these to monitor sous vide via mqtt with esp8266 and logging has been accurate and stable so far. No resistors or other external components are required to interact with it. They also seem to seal very well so you don't have to worry about water ingress if you're using them as a submersible temperature sensor.