You may like ITC-306T with Aquarium Sensor
Bought these to control the temperature of heat mats in the greenhouse. They are well made, easy to setup, and work fine. I bought them direct from Inkbird and they were delivered with no problems from China (to the UK). I'm very pleased with this product.
Inkbird ITC-306T Pre-wired Electronic Heating Temperature Controller and Digital Timer Controller
wonderful device, if you want consistency, this is what you need. fast shipping, i recommend ordering straight from the company!