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Handheld Tester
Explore NiuBoL GT2 high-precision soil nutrient tester. This article details this mobile laboratory designed specifically for agricultural material dealers and agricultural technology departments, covering its Android system, 12-channel detection, intelligent fertilization system, and cloud platform functions, helping you achieve precise fertilization and improve agricultural output.
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Email:Arvin@niubol.com +Nearly 100 partner companies in more than 68 countries. We are committed to providing high-quality, practical products to meet your needs and help you solve problems. Our products comply with international standards and are certified with ISO, CE and RoHS.Product Details
In the Critical Period of Modern Agriculture Transitioning from "Empirical Fertilization" to "Scientific Fertilization", Precise Soil Data Has Become the Core Competitiveness of Agricultural Output. For Agricultural Material Dealers, Agricultural Cooperatives, and Grassroots Agricultural Technology Extension Departments, How to Quickly, Accurately, and Low-Cost Obtain Soil Fertility Information Directly Determines the Professionalism of Fertilizer Formula Recommendations and the Convincing Power of Agricultural Material Sales.
The GT2 high-intelligent soil fertilizer nutrient rapid tester launched by NiuBoL is a practical benchmark product born precisely to meet this urgent need. It is not only a tester but also a mobile agricultural service terminal integrating data collection, expert diagnosis, and cloud management.

Traditional soil testing often relies on large laboratories, which not only have long cycles but also cumbersome sample submission processes. GT2 completely changes this situation.
Integrated Design of Reagents, Utensils, and Instruments
GT2 adopts high-strength PVC engineering plastic carrying case packaging, with scientific internal integration of reagents, colorimetric utensils, electronic instruments, and pretreatment tools. This "mobile laboratory" design allows users to conduct mobile testing in the office or directly in the field without purchasing any additional accessories.
Zero-Threshold Operation and Video Teaching
Considering the professional background differences of grassroots operators, GT2 system has embedded complete sample pretreatment video teaching. From soil sample collection, filtrate extraction to color development and comparison, every testing step can be viewed in real time by clicking the screen video module, achieving the extremely simple process of "watch video, learn experiment, get started immediately", greatly reducing learning costs.

GT2 far exceeds similar practical instruments in performance indicators, with core advantages embodied in the following dimensions:
Android Intelligent Platform and Strong Performance
The instrument is equipped with Android operating system, main control chip adopts ARM Cortex-A7 (RK3288 quad-core processor) with main frequency up to 1.88GHz. Powerful computing power ensures instantaneous response of complex fertilization algorithms and stability during multi-task processing. 7-inch high-sensitivity true color touch screen, paired with intuitive UI interaction interface, provides users with smooth experience like using a smartphone.
12-Channel Solid-State Detection Matrix
GT2 adopts double-row 12 independent detection channel design. The solid-state design not only enhances structural durability but also achieves batch operation: under skilled operation, determining N/P/K of 1 soil sample only takes 20 minutes, while processing 8 samples simultaneously only takes 1 hour. This is revolutionary efficiency improvement for dealers who need large-scale soil testing during peak agricultural material seasons.
Four-Wavelength Cold Light Source Technology
Built-in professional testing cold light sources of red, blue, green, and orange 4 wavelengths. This light source system has extremely high wavelength stability, lifespan up to 100,000 hours, and no temperature drift during long continuous operation. Combined with standard 1cm colorimetric cuvette, it ensures precise optical path positioning with detection accuracy better than national standards.
GT2 can perform multi-dimensional component analysis on soil, fertilizer, and plants, with testing items covering mainstream agricultural needs at home and abroad:
Basic Nutrient Determination: Ammonium nitrogen, nitrate nitrogen, hydrolyzed nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus, total potassium.
Organic Carbon and Organic Matter: Supports Tyurin method and extraction method, can determine total organic carbon and carbon-nitrogen ratio, deeply evaluating soil structure.
Physical and Chemical Indicator Monitoring: High-precision pH value (acidity and alkalinity), salinity (conductivity), and moisture content testing with extremely low error.
Medium and Trace Elements: Calcium, magnesium, sulfur, silicon, boron, iron, copper, manganese, zinc, chlorine, molybdenum, and other 11 elements.
Heavy Metal Screening: Lead, arsenic, cadmium, chromium, mercury, nickel, aluminum, fluorine, titanium, selenium, and other 10 heavy metals, safeguarding production environment safety.

GT2 not only provides values but also solutions.
Crop Expert Fertilization System
This is the core competitiveness of NiuBoL. The system has built-in national target yield fertilization models for more than 100 agricultural economic crops, fruit trees, and grain crops. Users only need to input detected soil nutrient values and expected yield, and the instrument can automatically generate professional reports including crop type, recommended fertilizers, required total amount, and detailed fertilization scheme.
Seamless Data Interconnection
Multi-Mode Upload: Supports WiFi, 4G, GPRS, and multiple ways to transmit data to the cloud.
Smart Cloud Platform: After connecting to the cloud platform, users can view historical records online through mobile terminals for visualized data analysis and long-term management.
GPS Geographic Marking: Automatically records longitude and latitude information during field operations, realizing spatial traceability of detection data.
On-Site Instant Printing
Built-in new-generation high-speed thermal printer, no ribbon required. Printed vouchers include testing unit, nutrient content (mg/kg), absorbance, and QR code, convenient for farmers to take away fertilization recommendations, enhancing the professionalism and sense of ceremony of the service.

| Indicator | Performance Parameters |
|---|---|
| Processor/System | ARM Cortex-A7 (RK3288), Android intelligent system |
| Detection Channels | 12 solid-state detection channels |
| Repeatability Error | ≤0.03% (0.0003, potassium dichromate solution) |
| Linearity Error | ≤0.1% (0.001, copper sulfate test) |
| Stability | No drift within 1 hour; drift ≤0.3% within 2 hours |
| Wavelength Range | Red: 680±2nm; Blue: 420±2nm; Green: 510±2nm; Orange: 590±4nm |
| pH Value/Salinity | pH 1–14 (±0.1); Salinity 0.01%–1.00% (±5%) |
| Protection/Shock Level | IP65 shock-resistant design |
| Power Mode | AC/DC dual use, built-in lithium battery (endurance >10 hours) |

Q1: Which groups is GT2 soil nutrient rapid tester suitable for?
GT2 is a "practical" flagship, particularly suitable for agricultural material dealers (driving fertilizer sales through free soil testing), grassroots agricultural technology extension stations, agricultural professional cooperatives, fertilizer production manufacturers, and agricultural large households with planting scale above 100 mu.
Q2: Is the cost of testing one soil sample high?
Very low. Since NiuBoL provides finished reagents, the reagent cost for a single test is only a few yuan. Compared to laboratory sample submission fees that often cost hundreds of yuan, GT2 can recover instrument costs in a short time by saving testing fees.
Q3: If power suddenly goes out during testing, will data be lost?
No. GT2 has low voltage prompt and power-off protection functions. Once abnormal power outage is detected, the system automatically saves current testing data to prevent loss or invalidation of experimental data.
Q4: Does the instrument support export or use by foreign technical personnel?
Yes. The system has built-in one-key Chinese-English switching function, with clear UI interaction logic, conforming to international usage habits, able to meet overseas project and export trade needs.
Q5: How is after-sales service guaranteed?
NiuBoL provides highly competitive after-sales policy: whole machine warranty for five years, lifetime free repair and mailing. At the same time, we provide lifetime free technical support related to soil and fertilizer, ensuring users not only "know how to use the instrument" but also "understand fertilization".
Q6: How is the detection accuracy for trace elements and heavy metals?
For trace elements, relative error ≤5%; for soil nitrogen, phosphorus, and potassium, error controlled within ≤1%. Although it is a rapid tester, its stability is 6 times the national standard JJG179-90 indicators, fully meeting the needs of on-site diagnosis and precision fertilization.

NiuBoL GT2 not only represents the integration of soil testing technology but also a modern service concept. In today's advocacy of "zero growth of chemical fertilizers" and "green agriculture", owning GT2 soil nutrient rapid tester means having scientific discourse power. It can help you accurately identify soil nutrient shortcomings, avoid environmental pollution and cost waste caused by blind excessive fertilization, truly achieving yield increase and efficiency improvement.
NiuBoL and its team sincerely invite national dealers to participate in project cooperation and jointly cultivate the precision agriculture market.
If you have more procurement intentions or technical detail needs for soil nutrient rapid testers, please feel free to contact us. We will provide you with all-round technical training and after-sales support.
| Instrument Box | Medicine Box | ||||
|---|---|---|---|---|---|
| Serial number | Name | Quantity | Serial number | Name | Quantity |
| 1 | Instrument | 1 Unit | 1 | Medicine box | 1 Unit |
| 2 | PH meter | 1 Pcs | 2 | NPK organic reagent | 1 Set |
| 3 | TDS meter | 1 Pcs | 3 | Qualitative filter paper | 1 Box |
| 4 | Electronic scale (100g/0.01g) | 1 Unit | 4 | Cuvette | 10 Pcs |
| 5 | Aluminum box | 1 Pcs | 5 | Glass test tube | 12 Pcs |
| 6 | Ear cleaning bulb | 1 Pcs | 6 | Plastic test tube | 20 Pcs |
| 7 | Glass stirring rod | 1 Pcs | 7 | 100ml triangular flask | 2 Pcs |
| 8 | Glass pipette 1ml | 1 Pcs | 8 | Reagent bottle | 1 Pcs |
| 9 | Glass pipette 2ml | 1 Pcs | 9 | 50ml measuring cylinder | 1 Pcs |
| 10 | Glass pipette 5ml | 1 Pcs | 10 | Plastic dropper | 12 Pcs |
| 11 | Glass pipette 10ml | 1 Pcs | 11 | Test tube rack | 1 Set |
| 12 | Printing paper | 1 Roll | 12 | Test tube brush | 1 Pcs |
| 13 | Instruction manual | 1 Copy | 13 | Washing bottle | 1 Pcs |
| 14 | Certificate of conformity/warranty card | 1 Copy | 14 | Weighing spoon | 1 Set |
| 15 | Power adapter | 1 Unit | 15 | Power adapter | 1 Unit |
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