Feature: 1. IMPROVE HAY QUALITY: With a portable hay humidity tester, you can effectively view and manage the Humidity content of your hay to guarantee it meets required standards for storage, feeding and overall quality. 2. PREVENT ROTTEN AND SPOILS: Hay humidity tester saves time and money by monitoring dryness and helps prevent humidity induced spoilage and erosion during storage, so processing is easier and more efficient. 3. LARGE DIGITAL DISPLAY, SIMPLE AND INTUITIVE: The hay Humidity tester utilizes backlit LCD technology for a clear display, low power consumption, and an eye catching display interface with clear picture quality and distinct fonts. 4. SIMPLE OPERATION: Measurements are made by inserting a sensor into a package of materials associated with wood meal. Close manually at any time. Power off automatically 5 minutes after last operation. 5. BATTERY REPLACEMENT: When the battery symbol appears on the display, the batteries must be replaced promptly. Slide the battery cover and place the batteries correctly in the holes. Operation by conductivity with automatic temperature compensation. Specification: Item Type: Portable Hay Humidity Meter Material: ABS Weight: Approx. 421g/14.9oz Size: Approx. 455x75x33mm / 17.91x2.95x1.30in Battery (Shipped Without Battery): AAA Batteryx4 Measuring Range: 0-80% (CD00) Operating Conditions: Temperature: -10~60℃ Humidity: 5%~90%RH Resolution: 0.1 Accuracy: ±0.5% Applicable: Farmers, Ranchers and Hay Producers . Package List: 1 x Portable Hay Humidity Meter (Battery Not Included) 1 x Storage Bag 1 x User Manual Note: Manual measurement please allow some error.