Background: The Real Needs of Grassroots Testing Stations
In 2025, a county-level agricultural extension center purchased a Laiyin Technology IN-HT200 soil nutrient analyzer for use in daily soil testing and fertilizer prescription services. The following is a real-world usage report six months after the device was put into service.
Delivery, Installation, and Commissioning
Upon delivery, Laiyin Technology’s technical staff guided the installation over the phone. The startup interface on the 7-inch touchscreen was clear and intuitive, and the testing menu was easy to navigate. The technicians completed the initial calibration remotely and recorded an instructional video for the station’s staff to learn from. The entire commissioning process took approximately two hours, and both technicians at the station mastered the basic operating procedures.
Daily Testing Efficiency
The IN-HT200 Soil Nutrient Analyzer is equipped with a 4-channel testing system, capable of processing four soil samples simultaneously. The station tests an average of 20–30 samples daily. Sampling and pretreatment are completed in the morning, with testing conducted in the afternoon; typically, all testing tasks are finished before the end of the workday. Compared to the older model previously used, the 4-channel design has increased testing efficiency by approximately threefold.
Verification of Testing Accuracy
The station regularly sends test results from the IN-HT200 Soil Nutrient Analyzer to a municipal-level laboratory for comparative verification. Comparative data from the past six months shows that the agreement between the analyzer’s results and laboratory methods exceeds 90% for available nitrogen, available phosphorus, available potassium, and organic matter, and exceeds 95% for pH measurements. Station technicians indicate that this level of accuracy fully meets the daily service requirements for soil testing and fertilizer prescription.
Data Management Experience
The IN-HT200’s Wi-Fi upload feature has streamlined operations at the station. Upon completion of each test, data is automatically uploaded to the cloud platform, allowing managers to view testing progress and results in real time on their office computers. For data required for reporting to county-level agricultural departments, reports can be directly exported from the cloud platform, eliminating the need for manual data compilation.
Troubleshooting and Maintenance
During six months of use, the device has operated stably with no major malfunctions. There was one instance of slow response in a testing channel; technicians confirmed via remote diagnosis that the colorimetric cell required cleaning. After station staff completed the cleaning as instructed, normal operation was restored. Laiyin Technology recommends comprehensive calibration every three months, and the station has incorporated this into its routine maintenance schedule.
