Product OverviewThe Smart Sensor AR991 is a professional-grade digital grain moisture meter designed for farmers, grain traders, and warehouse managers to accurately measure the moisture content of various crops. Utilizing a resistance-based measurement principle with a high-precision dual-rod stainless steel probe, the device provides rapid and reliable readings to help prevent crop spoilage and ensure quality control during grain procurement and storage. Its ergonomic, stick-type design and built-in voice notification system make it a practical tool for field use, allowing for easy operation even in low-light conditions. Key Features Multi-Grain Versatility: Supports the measurement of 14 different grain varieties, including paddy, wheat, corn, barley, rice, sorghum, soybean, peanut, rapeseed, sesame, soymeal, cottonseed, watermelon seed, and pellet feed. High-Precision Sensing: Uses a dual-rod probe to deliver readings with a resolution of 0.1% and a typical accuracy of ±0.5%. Intelligent Voice Alerts: Features a built-in speaker that can announce measured values or provide high-moisture alerts, enabling "hands-free" operation. Data Management: Includes a memory function for settings, data hold, and a deviation adjustment feature (allowing user calibration from -3% to +5%). User-Friendly Interface: Equipped with a large, backlit LCD display for clear visibility and adjustable alarm settings to notify the user when moisture levels exceed a pre-set threshold. Durable Field Design: The device is lightweight and features an automatic power-off function (after 15 minutes of inactivity) to conserve battery life. Technical Specifications SpecificationDetailsBrandSmart SensorModelAR991Measurement PrincipleResistance MethodResolution0.1%Accuracy±0.5% (typical)Power Source4 x 1.5V AA BatteriesDimensions8.0 cm x 4.3 cm x 42.5 cmNet Weight~0.25 kgOperating Temperature-10°C to 50°C
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