BaldrTherm Solar Photosensitive Three Channel Thermo-Hygrometer @ Amazon

Solar Photosensitivity Thermo-hygrometer: This outdoor hygrometer uses advanced solar photovoltaic panels to quickly and accurately sense the surrounding temperature. Perfect for anyone seeking worry free, low maintenance solutions to monitor your garden, swimming pool, or outdoor space year-round. In addition, the main unit of the product is for indoor use, while the three sub units can be used outdoors.

Automatic Smart Backlight: Thanks to the built-in light sensor, this thermometer automatically adjusts the backlight depending on the ambient lighting. Whether it's bright daylight or night, you'll always have clear visibility. You can also manually turn the backlight on or off based on your preference.

Instant Alerts for Temperature & Humidity Changes: Stay on top of environmental conditions with real-time alerts when the temperature or humidity goes beyond your preset range. Perfect for monitoring outdoor conditions in real time, whether for your pool, garden, or any sensitive areas.

Monitor Multiple Locations at Once: View temperature and humidity readings from four different locations on one screen, all without the need to switch between settings. Ideal for large outdoor areas, this thermometer lets you keep tabs on multiple zones simultaneously with ease.

Durable, Weather-Resistant Design: Built to withstand the elements, this thermometer is designed for outdoor durability, with a sleek, compact design that’s easy to mount on walls or place on any flat surface. Perfect for both indoor and outdoor use, providing reliable monitoring no matter the weather.