1. **High Precision Measurement**: The Grow Light Tester PPFD Meter is equipped with advanced spectrometer technology, offering an impressive spectral resolution of 0.2nm, ensuring accurate readings for effective horticulture practices. 2. **Wide Wavelength Range**: This powerful PAR meter features a measurement range of 350nm-800nm, allowing you to assess the full spectrum of light essential for plant growth and optimize your indoor gardening setup. 3. **User-Friendly Design**: With a compact size of 138.5*81*23mm and a lightweight design of only 430g, this spectrometer is easy to handle, making it for both professional horticulturists and home gardeners alike. 4. **Accurate Illuminance Readings**: The Grow Light Tester offers an illuminance range of 5lx to 200klx, with an illumination accuracy of ±4%, helping you ensure your plants receive the optimal light conditions for healthy growth. 5. **Durable and Reliable**: Designed for long-term use, this single beam spectrometer operates effectively within a temperature range of -10 to 40 degrees a humidity level below 70% (no condensation), making it suitable for various horticultural environments.