【Professional Height & Slope Measurement】This Height Gauge is designed for accurate tree height, height difference, and slope angle measurement in forestry, surveying, and outdoor work, eliminating complex calculations and data lookup. 【Durable & Reliable Construction】Built with high-quality materials for long-term use, the direct-reading tree height meter features a clear, color-coded scale for easy reading in various light conditions, suitable for all-day outdoor use 【Direct Reading with 4 Calibrated Scales】Equipped with 4 scales preset for distances of 15/20/30/40 meters, the handheld clinometer allows you to read height values directly, ensuring fast and precise measurements up to 60m max height 【Compact & Lightweight for Field Use】At only 0.4kg with dimensions 156×127×25mm, this portable height meter is easy to carry and operate, making it ideal for on-site work without bulky equipment 【Multi-Purpose Outdoor Tool】Beyond forestry tree height measurement, this hypsometer also serves as a slope angle gauge for construction, landscaping, and terrain surveying, a versatile addition to your outdoor measuring tools