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Product Details
Product Overview
The HM-T4 Research-Grade Soil and Fertilizer Nutrient Analyzer (commercial model HM-CT) represents the flagship instrument in HM Instruments' desktop spectroscopy series. Engineered for agricultural universities, research academies, environmental monitoring authorities, and premier agricultural enterprises demanding high analytical precision, the HM-T4 integrates soil fertility, fertilizer chemistry, crop physiological nutrition, environmental heavy metal pollution screening, and produce food safety testing into a unified platform.
Powered by an ARM Cortex-A7 RK3288 processor (1.88 GHz) and Android OS, the HM-T4 features 12 colorimetric channels, 4-wavelength cold light sources, and patented filter technology (Patent ZL 2020 2 1763837.9). The instrument achieves an optical repeatability error of ≤0.02% and stability sixfold superior to national standard JJG179-90. Beyond complete macro- and micronutrients, the HM-T4 performs quantitative screening for 10 heavy metals in soils and fertilizers (Pb, As, Cd, Cr, Hg, Ni, Al, F, Ti, Se) and monitors food safety parameters (nitrates, nitrites, heavy metals) in fruits and vegetables.
Key Features
- Flagship multi-parameter capability integrating soil nutrients, fertilizer chemistry, crop tissues, heavy metals, and food safety testing.
- 12 independent high-precision optical channels enable simultaneous multi-sample batch testing for research workflows.
- Optical repeatability error of ≤0.02% (potassium dichromate solution) and 1-hour zero-drift stability deliver scientific data integrity.
- Certified with an authoritative Calibration Certificate from the National Institute of Metrology, ensuring legal compliance.
- Heavy metal screening detects lead (Pb), arsenic (As), cadmium (Cd), chromium (Cr), and mercury (Hg) in soils, fertilizers, and produce.
- Solid-state 4-wavelength cold light source system (680nm, 420nm, 510nm, 590nm) provides 100,000 hours of drift-free illumination.
- 7-inch true-color Android touchscreen with multi-level user permissions and real-time operational video guidance.
- Agronomic software incorporates an expert fertilization formula calculator, plant deficiency atlas, and GPS coordinate tagging.
- Integrated thermal printer prints comprehensive laboratory reports complete with testing metrics and verification QR codes.
- Multi-mode telemetry (WiFi, 4G, GPRS, USB, RJ-45) facilitates automated data export to smart cloud platforms and LIMS.
- IP65 physical protection, dual AC/DC power supply, high-capacity lithium battery (>10h), and 12V vehicle charging compatibility.
Applications
The HM-T4 delivers research-grade testing across advanced agricultural and environmental disciplines:
- Soil Testing: Available NPK, total NPK, organic matter (Qiu Lin & extraction methods), TOC, C/N, 11 trace elements, pH, salinity, moisture.
- Soil Heavy Metals: Quantitative screening for lead (Pb), arsenic (As), cadmium (Cd), chromium (Cr), mercury (Hg), nickel (Ni), aluminum (Al), fluorine (F), titanium (Ti), and selenium (Se).
- Fertilizer Analysis: Elemental, compound, and organic fertilizers; biuret in urea; water-soluble phosphates; humic acid; and fertilizer heavy metals.
- Plant Nutrition: Fresh crop nitrates, nitrites, and NPK; dry plant total NPK; tobacco leaf 20-item nutrition; and water quality analysis.
- Food Safety Testing: Nitrates, nitrites, and toxic heavy metals (Pb, Cr, Cd, As, Hg) in fresh fruits and vegetables.
- Target Facilities: Agricultural universities, soil science institutes, environmental protection laboratories, and inspection centers.
Technical Specifications
| Parameter | Specification |
|---|---|
| Operating System | Android OS, ARM Cortex-A7 RK3288 4-Core (1.88 GHz) |
| Optical Channels | 12 independent colorimetric channels with 1cm cuvettes |
| Cold Light Source | 4 wavelengths (Red 680nm, Blue 420nm, Green 510nm, Orange 590nm); 100,000h lifespan |
| Patent & Calibration | High-precision filter patent ZL 2020 2 1763837.9; Metrology Calibration Certificate |
| Repeatability Error | ≤0.02% (0.0002, potassium dichromate solution) |
| Stability | Zero drift in 1h; drift ≤0.3% (T) or 0.001 (A) within 2h |
| Linearity Error | ≤0.1% (copper sulfate test) |
| Sensitivity | Red ≥4.5×10⁻⁵, Blue ≥3.17×10⁻³, Green ≥2.35×10⁻³, Orange ≥2.13×10⁻³ |
| Measurement Range | 0.001–9999 |
| pH Measurement | Range 1–14, Accuracy 0.01, Error ±0.1 |
| Salinity (Conductivity) | Range 0.01%–1.00%, Relative error ±5% |
| Soil Moisture | Range 0–100%, Error <0.5% |
| Testing Speed | Single sample NPK ≤20 min; 3 samples ≤40 min; 8 samples ≤60 min |
| Display Screen | 7-inch high-sensitivity true-color touchscreen (1024×600) |
| Data Interface | WiFi, 4G, GPRS, USB, RJ-45 Ethernet, Cloud upload |
| Built-in Printer | Integrated thermal printer (supports text & QR codes) |
| Smart Software | Crop fertilization formula system, plant deficiency atlas, tutorial videos |
| Power Supply | AC 220±22V, DC 12V+5V; rechargeable lithium battery (>10h) & vehicle power |
| Power Consumption | ≤5 W |
| Housing & Weight | IP65 protection; Host: 420×310×150 mm, 3.6 kg; Package: 510×390×375 mm, 9.7 kg |
Configuration and Accessories
| No. | Item Description | Quantity |
|---|---|---|
| 1 | Main Instrument Host (12-Channel) | 1 unit |
| 2 | pH Test Electrode Pen (Range 1-14) | 1 pc |
| 3 | TDS Salinity Conductivity Pen | 1 pc |
| 4 | Electronic Precision Balance (100g/0.01g) | 1 unit |
| 5 | Aluminum Soil Sampling Box | 1 pc |
| 6 | Rubber Suction Bulb | 1 pc |
| 7 | Glass Stirring Rod | 1 pc |
| 8 | Glass Pipette 1ml | 1 pc |
| 9 | Dedicated Reagent Carrying Case | 1 unit |
| 10 | NPK & Organic Matter Reagent Kit | 1 set |
| 11 | Qualitative Filter Paper | 1 box |
| 12 | Optical Glass Cuvettes | 10 boxes |
| 13 | Glass Test Tubes | 12 pcs |
| 14 | Plastic Test Tubes | 20 pcs |
| 15 | Erlenmeyer Flask 100ml | 2 pcs |
| 16 | Chemical Reagent Bottle | 1 pc |
| 17 | Power Cable & 12V Vehicle Charger | 1 set |
Model Selection
Compare research capabilities across our desktop testing instruments:
| Model | Channels | Error | Testing Capabilities | Target Scope |
|---|---|---|---|---|
| HM-T1 | 12 | ≤0.03% | Soil NPK, Organic Matter, pH, Salt, Moisture | Routine soil testing, supply stores, field cooperatives |
| HM-T2 | 12 | ≤0.03% | T1 items + 11 Soil Trace Elements (Ca, Mg, S, B, Fe, Zn, etc.) | Balanced nutrition, commercial orchards, greenhouse farming |
| HM-T3 | 12 | ≤0.02% | T2 items + Fertilizers (NPK, humic acid) + Plant Tissues + Water | Fertilizer factories, quality control, agrochemical stations |
| HM-T4 | 12 | ≤0.02% | T3 items + Heavy Metals (soil/fertilizer) + Food Safety items | Research institutes, universities, food safety inspection |
Product Enquiries
Contact our sales representative for product enquiries, configuration information and coordination of service requests.
Sales Contact: Grace
Email: graceliu@hmdzkj.cn
Tel / WhatsApp / WeChat: +86 17853698681
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