Soil Heavy Metal Detector

Soil heavy metal pollution is becoming increasingly severe, leading to the accumulation of heavy metals such as cadmium, copper, arsenic, chromium, mercury, iron, zinc, manganese, copper, nickel, aluminum, fluorine, titanium, and selenium in the soil's topsoil layer. This has become one of the primary environmental issues facing us today.

Heavy metals in soil enter the food chain through accumulation in crops, posing a serious threat to human and animal health. The mining of non-ferrous metal ores, the discharge of industrial “three wastes” (wastewater, waste gas, and solid waste), the accumulation of heavy metal-containing waste, the use of wastewater for irrigation in agricultural production, and the improper use of agricultural chemicals can all lead to harmful heavy metal elements entering the soil directly or indirectly, resulting in severe exceedances of heavy metal content in soil, crops, fruits and vegetables, water quality, and aquatic products.

However, current heavy metal testing methods are slow, cumbersome, and require expensive equipment. In response to this situation, we have developed a rapid heavy metal testing method.

The soil heavy metal detector can rapidly and simultaneously measure arsenic, lead, cadmium, chromium, mercury, nickel, aluminum, fluorine, titanium, selenium, iron, aluminum, zinc, manganese, and copper in samples such as soil, fertilizers, crops, vegetables, fruits, water quality, and food.

• High-strength PVC engineering plastic carry case design, sturdy and durable, easy to carry, with all functions integrated, no need for users to purchase additional accessories, and flexible for mobile testing.

• High-sensitivity 7-inch true-color touchscreen with more efficient and user-friendly operation, high-definition and high-interactivity display, significantly reducing the cumbersome operations and errors of traditional instruments.

• Android operating system, with the main control chip using the ARM Cortex-A7 architecture and the RK3288/4-core processor, operating at a clock speed of 1.88 GHz, ensuring faster processing speeds and enhanced stability.

• The colorimetric cell section uses standard 1cm colorimetric cells, eliminating mechanical displacement and wear. The optical path testing is accurately positioned, effectively shielding external light interference, ensuring detection results that exceed national standard requirements.

• 6 detection channels (solid-state design) allow for rapid detection of 6 samples at once, improving detection efficiency and reducing detection costs.

• Built-in plant nutrient diagnosis standard spectrum, comparing leaf images based on nutrient deficiency images of various crops to diagnose nutrient deficiencies.

• Built-in crop expert fertilization system, capable of calculating recommended fertilization amounts for over 100 types of national agricultural crops, fruit trees, etc., based on target yields, providing scientific guidance for agricultural production based on fertilization formulas. Soil testing and fertilization results can be printed, with the printout including: crop type, fertilizer type, target yield, total requirement, and recommended fertilization plan.

• Built-in next-generation high-speed thermal printer (no ribbon required), with the printout including: testing unit, tester, testing items, channel number, absorbance, nutrient content (mg/kg), testing time, and QR code information.

• The instrument is equipped with Wi-Fi wireless upload, 4G network transmission, and GPRS wireless remote transmission functions for rapid data upload.

• The instrument has a built-in large-capacity memory, supporting the viewing of all historical testing records and the transmission of all testing data.

• Equipped with a smart cloud agriculture platform, the instrument can selectively or batch-upload testing data wirelessly after connecting to a wireless network, facilitating long-term data management and visualization analysis for users.

• The instrument has a built-in low-voltage warning function, which clearly indicates battery level during testing to prevent data drift. It also has a power failure protection function, automatically saving data in case of power loss to prevent data loss.

• The instrument features USB and Ethernet interfaces, and data can be copied to a USB drive at any time.

• Built-in calibration functionality during testing, with intelligent constant current voltage regulation and automatic light intensity calibration, ensuring testing accuracy.

• Built-in clock functionality for convenient time recording and long-term historical traceability.

• Users can log in to the cloud platform via mobile phone to view historical data online at any time.

• The instrument features a 4-wavelength professional test cold light source (red, blue, green, orange), with stable light source wavelengths. The light source maintains stable performance during prolonged continuous operation, exhibits no temperature drift, and has a lifespan of up to 100,000 hours, ensuring excellent reproducibility and high accuracy.

• The instrument system includes sample pretreatment operation videos. Various sample testing methods can be viewed by clicking the video module, eliminating the need for testing personnel to self-study the manual. This provides convenient and rapid guidance, making it easy for newcomers to operate quickly.

• Supports multiple user accounts with password-protected login. The intuitive UI interface allows different users to freely add and edit testing information, which can be saved for long-term use.

• Dual AC/DC power supply mode. Built-in high-capacity rechargeable lithium battery enables continuous operation for over 10 hours when fully charged, and can also be connected to a vehicle power source for charging.

• GPS functionality: Records latitude and longitude locations during field operations, meeting the needs of special users.

• The instrument features a Chinese-English language switch function, meeting export requirements.