About This

• 【Dual Temperature Synchronous Monitoring】 AR867 upgraded room hygrometer supports simultaneous indoor and outdoor temperature display. Equipped with an external temperature probe, it allows you to monitor temperature changes in two environments at the same time—no extra devices required! You can easily grasp the indoor-outdoor temperature difference, making it ideal for families, greenhouses, warehouses and outdoor application scenarios.
• 【Wider Temperature Monitoring Range】 This indoor outdoor hygrometer covers temperature range: 14°F to 122°F (indoor, equivalent to -10°C to 50°C) and -58°F to 158°F (outdoor, equivalent to -50°C to 70°C). maintaining stable operation and accurate data output even in harsh weather. Perfect for users who need temperature monitoring in low-temperature or outdoor scenarios, matching with its reliable humidity detection performance.
• 【Intelligent Environment Status Prompt】 Built-in intelligent identification system, this digital hygrometer automatically displays Dry, Comfort or Wet status icons based on real-time temperature and humidity values. It intuitively feeds back air dryness and comfort level, helping you quickly judge the current environment without professional knowledge. This user-friendly design greatly reduces the difficulty of using the hygrometer, making it suitable for all ages.
• 【Automatic MAX/MIN Record】 The AR867 hygrometer thermometer is equipped with a built-in MAX/MIN memory function, which can automatically record the historical highest and lowest values of temperature and humidity. It’s extremely convenient for you to review long-term environment change trends—essential for scenarios that require continuous monitoring (such as greenhouses, warehouses and baby rooms). This function enhances the practicality of the hygrometer, meeting professional monitoring needs.
• 【Freezing Point Alarm & Multi-Mode Display】 This upgraded hygrometer features a freezing point alarm function: it triggers an alarm prompt when the outdoor temperature is close to freezing, helping you prevent freezing risks in advance (very useful for outdoor equipment, water pipes and greenhouses). Meanwhile, it supports ℃/℉ unit switching and 12/24-hour format display, adapting to different regional usage habits and preferences. It’s a versatile hygrometer that combines safety, convenience and practicality.