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Description
A&D EJ-303 - 310g x 0.001g Compact High Precision BalanceA&D EJ 303 310g x 0. 001g Compact High Precision Balance Durable and affordable with a small footprint and lightweight design, the EJ series is ideal for pharmacy, education and industrial applications. Great for on the go weighing or when bench space is limited. Built in functions allow for advanced weighing procedures from density determination to piece counting and accumulation. Every EJ balance has the option to be battery operated and can last
A&D EJ-303 - 310g x 0.001g Compact High Precision Balance
Durable and affordable with a small footprint and lightweight design, the EJ series is ideal for pharmacy, education and industrial applications. Great for on the go weighing or when bench space is limited.
Built-in functions allow for advanced weighing procedures from density determination to piece counting and accumulation. Every EJ balance has the option to be battery-operated and can last for up to 70 hours. Dependable weighing for a variety of applications.
Features:
| Applications | Counting with Automatic Counting Accuracy Improvement (ACAI), Percent, Display Hold, Accumulation M+, Gravity Acceleration Correction |
| Weighing Units | g, oz, lb, ozt, ct, mom, dwt, grain, N, pcs |
| Connectivity | RS-232C interface (optional) , Quick USB interface (optional), LAN – Ethernet interface with WinCT-Plus software (optional) |
Specifications:
| Capacity | 310 g |
| Readability | 0.001 g |
| Repeatability | 0.003 g |
| Linearity | ±0.003 g |
| Calibration | External (300g) |
| Stabilization Time | ~5s |
| Sensitivity drift | ±20 ppm / °C (10°C-30°C / 50°F-86°F) |
| No. of samples | 5, 10, 25, 50 or 100 pieces |
| Min. unit weight | 0.001 g |
| Min. % display | 0.01% |
| Min. 100% weigh | 0.1 g |
| Display | 7 segment LCD display with backlight (Character height 16 mm) |
| Display update | 10 times per second |
| Weighing Pan Dimensions | 110mm Ø |
| Product Dimensions (mm/inches) | 190 x 211 x 126mm / 7.48 x 8.31 x 4.3in |
| Operating temp | -10°C-30°C, less than 85% R.H. (non-condensing) |
| Power supply | AC adapter (included) or 4 x “AA” size dry-cell batteries (Approximately 70 hours backlight off, alkaline batteries) |
| Compliance | GLP / GMP / GCP / ISO |
| Calibration weight (factory setting) | 300g |
| Warranty | 5 Years |
Additional Literature:
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
4.5 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Exelente.
Color: Gunmetal Grey, Size: Large
Exelente producto estoy muy conforme.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 4
Light, organized, security concern about strap
Color: Black+Gunmetal Grey, Size: Large, Color: Black+Gunmetal Grey, Size: Large
I used this passport holder on a recent multi passport trip and overall it does what it claims without feeling bulky. The nylon material is lightweight but reasonably sturdy and holds its shape well in a backpack or day bag. It does not feel flimsy, and still looks new with the stitching and zippers holding up well
Organization is the strong point. On one side I was able to fit three passports comfortably, though the pockets are not a uniform depth. The pockets are loose enough you can also double up if needed. A fourth passport fits on the opposite side along with several credit cards. There are zippered pouches inside and outside useful for cash and a phone, plus open access pockets that work well for boarding passes or documents you need to grab quickly. There is also a small storage area above the credit card slots that turned out to be useful, though listed for SSD storage, I stored a couple of CR2032 batteries there for Bluetooth trackers.
The RFID blocking is a basic but expected feature and worked as intended. Nothing about the layout forces cards or passports to bend, which I appreciate since I tend to keep this packed while moving through airports.
The shoulder strap is my main criticism. It is thin and functional but could be cut fairly easily. I would prefer to see embedded wire or a more reinforced strap for better security in crowded areas. The handle is fine for short carries, but the strap is what you rely on most of the time.
The included Bluetooth tracker works well enough for proximity alerts, but it is not compatible with Apple Find My. I ended up removing it and using an AirTag instead, which fit without issue and gave better ecosystem integration for me.
Overall, this is a practical, lightweight travel organizer that handles multiple passports and documents well. The layout is thoughtful and flexible, and the build quality matches the price point. The strap and tracker limitations are worth noting, but the core function as a family passport holder is solid.
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Reviewed in the United States on January 11, 2026
★★★★★ 3
Nice for travel
Color: Black, Size: Large
No fashion statement here but useable for my trip.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Bere
Color: Gunmetal Grey, Size: Large
Tiene buena capacidad, es ligero y cómodo ideal para cuando sales de viaje puedes guardar lo esencial
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Very Impressed, Great Deal
Color: Black, Size: Large
Purchased this as a gift for my travel clients who are going to Greece and I am so glad I did! At $9.99, it is such a great deal! And I love that it has RFID blocking, as well as a Bluetooth tracker, just in case. I'm excited to hear feedback from them and hoping the bluetooth tracker actually works! But so far, very impressed.
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Reviewed in the United States on March 24, 2026
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