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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
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Description
GOYOJO Food Nitrate TesterProduct Description Greentest 3F is made to check the nitrate content in fruits, vegetables, meat, fifish and the content of total dissolved solids (TDS value and water hardness) in water. Greentest 3F can not only quickly and accurately detect the safety of more than 60 most common foods, but also the quality of drinking water. The latest version is equipped with a capacitive screen, which is more sensitive to touch. Bluetooth module is added along
Product Description
Greentest 3F is made to check the nitrate content in fruits, vegetables, meat, fifish and the content of total dissolved solids (TDS value and water hardness) in water. Greentest 3F can not only quickly and accurately detect the safety of more than 60 most common foods, but also the quality of drinking water. The latest version is equipped with a capacitive screen, which is more sensitive to touch. Bluetooth module is added along with connection to the mobile APP for data storage and sharing. Timer function is added to help control the cooking time.
Product Features
•Lightweight and compact size.
•Capacitive screen: more sensitive, high-resolution color display and intuitive software interface.
•Fast and accurate results in only 3 seconds, with an error of less than 10%.
•The world's most advanced dual detection probe, small wound, higher accuracy (full series upgrade).
•The radiation detector, Geiger-Müller tube, allows the device to perform accuratemeasurement.
•Long battery life, USB rechargeable lithium ion 720mAh battery can provide up to 20 hours of use time.
•Friendly after-sales service, warranty.
•APP connection to specialized Android/IOS APP.
•Timer function.
•Capacitive screen: more sensitive, high-resolution color display and intuitive software interface.
•Fast and accurate results in only 3 seconds, with an error of less than 10%.
•The world's most advanced dual detection probe, small wound, higher accuracy (full series upgrade).
•The radiation detector, Geiger-Müller tube, allows the device to perform accuratemeasurement.
•Long battery life, USB rechargeable lithium ion 720mAh battery can provide up to 20 hours of use time.
•Friendly after-sales service, warranty.
•APP connection to specialized Android/IOS APP.
•Timer function.
Specification
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Nitrate measurement range
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0 - 9999 mg / kg
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TDS measurement range
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0 - 999 ppm
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Measurement error
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< 10%
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Dimensions
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122 52 x 14 mm
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Weight
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85 grams
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TFT color display resolution
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320 x 240
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Power
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720 mah lithium battery
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extra power supply
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USB power supply charger
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USB charging current
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310 horses
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voltage range
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5 v
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Use time
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20 hours (use the fully charged 720 mAh lithium battery in the default device settings)
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Operating temperature
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0 - 60 °
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Love this line
Love this line so far. I have super sensitive skin, but it feels amazing on my skin, and helps keeps my face moisturized all day!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 1
Highly disappointed
It came completely shattered and destroyed….
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Skincare at an affordable price-Yes!!!!
I just purchased this skincare regime, and it is amazing. I was pleasantly surprised that each product is full sized! Each one is labeled with the order in which you should use them in AND it only takes a small amount per use. A tremendous value in comparison to other products. I also love that it is unscented. It's only been a short while but I'm already happy with the results.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
★★★★★ 5
Most amazing skincare products on the market.
Dr.Melaxin glow rice toner is amazing. I'm 68 and my skin has never looked or felt so amazing. Dr. Melaxin products are the best out there and affordable at the same time.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
Actually works
Amazing, got rid of my white heads on my chin and cheeks within 4 days of use so now I just have to keep up with it.
I've struggled finding good stuff that actually works
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026