The mechanical thermostats (temperature sensing switches) supplied with most boat refrigerators work fine for two years or so.
U-Line Compact Refrigerators Refrigeration Appliances - U-29R-00A
This is an OEM replacement thermostat for select Isotherm marine refrigerators. Designed to provide precise and reliable temperature control for
Isotherm SEA00097GA OEM Refrigerator Thermostat
What Is A Built-In Refrigerator? KitchenAid
Euhomy 12 Volt Refrigerators, 21Liter(23qt) RV Refrigerator with 12/24V DC & 110-240V AC, Portable Refrigerator Freezer Fridge Cooler for Car, RV
Fashion products thermostat for refrigerator
Replacement refrigerator thermostat Fits Dometic refrigerators Use as an exact replacement for the original thermostat Fit specific, always verify
MC Enterprises 2931336016MC Thermostat for Dometic Refrigerators
ISOTHERM Magnum 2505 Marine Refrigeration Conversion Kit, Water
Isotherm Compact 2301 Refrigeration Kit
Refrigerator Thermostat for Whirlpool, Sears, AP3037004
Compressor Dimensions Height: 7.5 inches Width: 15 inches (includes 4-inch air duct) Depth: 9 inches Weight: 19 lbs. Typical installation requires 1.5
Sea Frost BD Series 12/24 Volt Refrigeration Systems - Marea Marine