General temperature sensor designed to work for most applications.
Easy double-sided tape installation
Fully Submersible (IP68)
Wires connect in either order
Works will all Blue Sea Systems devices that require a temperature sensor
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
![Blue Sea 1820 Submersible Temperature Sensor [1820]](https://www.marinereplacementparts.com/wp-content/uploads/2026/09/blue-sea-1820-submersible-temperature-sensor-1820.webp "blue-sea-1820-submersible-temperature-sensor-1820")
![Onyx Re-Arm Kit 24g - Automatic/Manual [135200-701-999-12]](https://www.marinereplacementparts.com/wp-content/uploads/2026/09/onyx-re-arm-kit-24g-automatic-manual-135200-701-999-12.webp "onyx-re-arm-kit-24g-automatic-manual-135200-701-999-12")
