Test category: fruits, vegetables, meat Portable and : The and lightweight device is small enough to fit into your pocket or it's easy to take you in your bag whether you go. Easy-to-use interface: high-resolution color display provides an easy-to-use interface with unique and intuitive test software that allows you to quickly quality and safe fruits, vegetables and meat. Fast and accurate results: shows your nitrate test results in less than 10% in just 3 seconds. Separate test probes: Single test probes are easy to insert into fruits, vegetables and meat for nitrate levels without compromising your food. Nitrate measurement range: 0-9999 mg / kg; Measurement time: ~3 seconds; Color: green Material: ABS Measurement error range: Less than 10%; Power supply: lithium battery; Battery capacity: 720 mAh; USB charging current: 310 mA; Power supply voltage range: 5 V; Use for up to 20 hours; Size: 12.2*6.2*1.4cm Weight: 282 grams. TFT color screen resolution: 320240; Operating temperature: 0- + 60 . Package Including 1* Safety Tester Tool Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.