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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
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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
4.4 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Flat screen phone holder charger
Style: Qi2 Charging Mount, Style: Qi2 Charging Mount
This phone holder works perfectly on my aftermarket flat screen. It charges and it swivels 360. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 4
Not perfect, but good enough for daily use
Style: Qi2 Charging Mount
Well made and very strong magnet. Make sure you tighten it completely or it will fall off. The tightening screws are not intuitive, but after some confusion you can figure it out. Works as intended and charging is as fast as your phone allows.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
★★★★★ 1
Not worth it won’t stay mounted on tesla screen
Style: Qi2 Charging Mount
Charging part works great on my iPhone 16 Pro, but the mount itself was horrible. Falls off constantly won’t lock in place to stay mounted on Tesla screen the mount itself is made of cheap plastic. Had it for about six months now the charger part w
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
★★★★★ 5
Fast charger
Style: Qi2 Charging Mount
Simple to install. Holds tightly and has enough adjustment flexibility to get your phone positioned the way you want it. Fast charger and mag holds tightly. Only downside is where to plug in the charging cord. But that would be a problem with any external charger.
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Reviewed in the United States on March 6, 2026
★★★★★ 3
charger works, not the adhesive on the ring.
Style: Qi2 Charging Mount
The metal ring adhesive was destroyed by the unit's heat in a few weeks. Do not buy it if you need the adhesive ring to hold the phone. The blinking light ring is annoying - why is it needed.
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Reviewed in the United States on April 3, 2026