ThermoPro remote sensor mounting box

thingiverse

I purchased a ThermoPro indoor/outdoor thermometer from Amazon to install in my travel trailer. The mounting system provided for the remote sensor is severely lacking, featuring only one keyhole slot for a single screw, making it completely unsuitable for use on a road-going vehicle. Furthermore, the term "waterproof" in the product description appears to be nothing more than a marketing gimmick, as it simply means "don't get it wet," according to the user manual. To rectify this issue, I designed and 3D printed a custom enclosure to house the remote unit, which I mounted underneath my trailer. This setup should provide a sturdy mounting system, shield the unit from road debris, and prevent most water from reaching the sensor. The enclosure features two holes that align perfectly with the actual sensors, ensuring optimal responsiveness. Notably, ThermoPro offers multiple products that utilize this same sensor box, making it an adaptable solution for various applications. The sensor itself fits snugly within the enclosure, minimizing vibration to nearly zero. The custom enclosure boasts four mounting holes in its base, designed to accommodate #6 flat head screws. The lid is secured with four screws, which I tapped into place using #6-32 x 3/4 screws. Metric hardware could also be used as a substitute. To ensure optimal print quality, I utilized ABS material with a 3D printing setting of 3 shells on the bottom and sides, 4 shells on top, and an infill percentage of 25%. It's worth noting that PLA should not be used for this application due to potential warping caused by temperature fluctuations.