Elitech Smart Digital Temperature Controller STC-1000WiFi – Elitech Technology, Inc.
XINGYHENG STC-1000 DC 12V 10A Microcomputer Digital Display Temperature Controller Thermostat Control Switch 2 Relay Output and NTC 10K Thermistor Sensors Digital Temperature Probe (12V): Amazon.com: Industrial & Scientific
STC1000 Temperature Controller (a beginner's guide) - National Homebrew Club
AC 110V Universal STC-1000 Digital Temperature Controller Thermostat w/ Sensor – ASA College: Florida