Thermomètre et hygromètre solaire d'intérieur mini - Alimenté par la lumière - Fonctionne uniquement sous un éclairage intense, Blanc - Lot de 3

【WARNING】 Only works under bright illumination (no energy storage). Capital: Inoperative in the dark and NEVER NEEDS recharging – direct photovoltaic conversion! 【Awakened by Light, Powered by Nature】 Activates with ultra-low light (45+ Lux) – less than indoor lighting (100 Lux) and far less than a reading lamp (500 Lux)! 【Zero Battery Problem】 Zero cost. Zero waste. Install and forget – long-lasting power by light. 【10+ years of reliability】Minimalist and robust design without wearing parts. Ecological simplicity without maintenance. 【Giant Display】 Numbers visible at 5 m+. Dimensions: 55 x 65 mm (2.2 x 2.6 inches) with versatile attachment: base, adhesive or suspension. 【Measurement range】 Temperature: -9.9°C ∼ 50°C (14°F ∼ 122°F), Humidity: 1% ∼ 99%. Accuracy: Temp. ±1°C, Humidity ±5%.