Introduction: ZYD-N03 agricultural product safety detector triple (pesticide residues, nitrite, heavy metal lead) can be widely used in the rapid quantitative determination of fruits and vegetables, agricultural and sideline products, daily food, seafood and their products, milk and other foods. Can be widely used in fruits and vegetables, agricultural and sideline products, daily food, seafood and their products, milk and other food rapid quantitative determination. Features: 1. Instrument all-metal chassis, durable. 2. 5 inches large screen full Chinese LCD screen. 3. Light source with super bright LED, with low power consumption, high reliability, fast response and so on. 4. Using closed loop light source automatic calibration system to avoid prolonged use, or changes in external conditions led to the light source is too strong or too weak and so on, to ensure that the light is always working in the best condition. 5. Light preheating and thermostat management system, effectively prevent drift, to ensure long-term stability of the measurement. 6.12 independent testing units, each unit consists of a light source system, a sample chamber, a set of detection system. 7. The instrument automatically correct 0% and 100%, do not need to manually carry out this correction. 8. The instrument has a self-test function. Can determine the fault and give tips to help staff to maintain the instrument. 9. Large memory, can store thousands of data. 10. At any time for data query, print, delete and other operations. 11. Instrument equipped with USB interface, data can be uploaded to the computer for data storage, data query, data processing, data upload and statistical analysis. 12. Monitoring network information is powerful, including measurement data system and monitoring management system, the implementation of the number of sets, statistics, query, exchange and print functions. Effective implementation of remote monitoring and management. 13. Equipped with high-capacity rechargeable batteries, no external power supply, can maintain more than 8 hours of work. 14. With a car power interface, user-friendly mobile equipment for the detection of vehicles.