za 4$ https://pl.aliexpress.com/item/XH-W3001-W3001-Temperature-Controller-Digital-LED-Temperature-Controller-Thermometer-Thermo-Controller-Switch-Probe-220V/32799461229.html?spm=a2g17.search0104.3.1.46953b65pl1ZL5&ws_ab_test=searchweb0_0,searchweb201602_5_10065_10068_5723115_5723715_5890015_5910018_5723815_312_10696_5723215_5723415_10084_5724318_5722215_10083_5724018_10618_10304_10307_10820_10301_10821_5724118_5723315_5723615_5724218_5970018_10843_5722315_10059_5723015_5722115_100031_5723915_5725018_5725118_5990018_5980018_10103_5724918_5722415_528-5990018,searchweb201603_54,ppcSwitch_5&algo_expid=7bbf42d4-96fb-4c7c-adb4-09f806023259-0&algo_pvid=7bbf42d4-96fb-4c7c-adb4-09f806023259&priceBeautifyAB=0
albo inkbird z wysłką z niemiec za 29$
https://pl.aliexpress.com/item/Inkbird-ITC-308-EU-Plug-Digital-Temperature-Controller-Thermostat-Regulator-Dual-Relays-1-Heating-1-Cooling/32821104398.html?spm=a2g17.10010108.1000014.2.13492fa5ZiQOs9&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.13338.110451.000000000000000&scm_id=1007.13338.110451.000000000000000&scm-url=1007.13338.110451.000000000000000&pvid=984423a1-4946-4a53-8d89-640b9eddba97