Honeywell L8148J1009 Aquastat Immersion Controller Relay 120-240F Range
2E821: Immersion Controller, Temp. Range 100° to 240°F - The Log Boiler
Solar Immersion Controller Review
Spring v11 3kw Immersion Heater Controller - The Cleaning Guide
GRILLME 1500W Titanium Fully Submersible Portable Electric Immersion Water Heater with Intelligent Temperature Controller,Bucket Water Heater,Seawater Heater for Fish Tank,Seawater Aquaculture - Amazon.com
3Kw Solar Immersion Controller Power Distributor PV Mate To Get Free Hot Water MPPT - AliExpress
My immersion heater controller with temp sensors for tank. : r/Esphome