Features: brand new and high quality The probe humidity tester is designed with a speaker on the back of the meter, which can report the measuring reading. It has high precision dual rod steel probe which is durable in use. This grain moisture meter has LCD backlight display, it is convenient to read measuring data at darkness. This grain humidity tester can quickly measure the water content of 14 varieties of grain such as wheat corn rice peanut soybean and more. Principle of Measurement Resistance Method. Ergonomically design non-slip handle fits the for palm well. Specifications: Material: ABS+Metal Length: 45cm/17.71 in Package Includes: 1x Moisture Meter note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.