Atago 3741 Pen-Urine Specific Gravity Digital Hand-Held Urine Specific Gravity Pen
- Urine SG 1.0000 to 1.0600 measuring range
- 0.0001 resolution, accuracy plus or minus 0.0010
- Automatic temperature compensation for 10 to 40 C samples
- 2 second reading on a digital LCD
- IP-65 body, **IP-67 prism head**, washable
- 1 AAA battery included, 70 g, 16 x 3.8 x 1.8 cm
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A pen-style digital refractometer that reads urine specific gravity in a couple of seconds, with temperature compensation and a washable prism head. It reads specific gravity only, so it will not do sugar or salinity work.
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ASIN: B004J4XDQQModel: ATA-3741Category: Refractometers
Overview
Dipping, touching or stirring the tip into a sample is how this pen-shaped refractometer takes a reading. A thin prism head allows one-handed use, and the digital LCD shows urine specific gravity.
A quick reading, a prism head rated for immersion and a warning when strong light disturbs the result are the reasons to consider it. A carrying case and strap holder are included, while the narrow scale limits it to one sample type.
Who it's for
People who want a compact digital meter they can rinse clean and carry in a pocket case for urine specific gravity checks. Users who test juices, brines or other liquids should choose a refractometer with the right scale.
Pros and cons
- Fast digital reading
- Prism head can be rinsed clean
- Warns when direct light interferes
- Zero key resets easily
- Urine specific gravity only
- Needs a battery
- Calibration needs water and care
Performance notes
The refractometer measures how much light bends in the sample and converts it to specific gravity on the display. Automatic temperature compensation corrects for sample warmth, and the light warning flags a reading taken in direct sun. Calibrating with water and resetting with the zero key keep the baseline right.
Specifications
| Model | ATA-3741 |
|---|---|
| Dimensions & fit | |
| Dimensions (H x W x D) | 16 x 3.8 x 1.8 cm |
| Weight | 70 g |
| Capacity & performance | |
| Measurement range | Urine SG 1.0000 to 1.0600 |
| Temperature compensation | Automatic (ATC), 10 to 40 C |
| Power & efficiency | |
| Power | 1 AAA alkaline battery (included) |
| Included components | |
| Included | Strap holder, protective carrying case, battery |
| Other details | |
| Accuracy | Urine SG plus or minus 0.0010 |
| Resolution | Urine SG 0.0001 |
| Measurement time | 2 seconds |
| Display | Digital LCD |
| Ingress protection | IP-65 body, IP-67 prism head |
Closest rivals on specs
Atago 4410 PAL-10S Digital Hand-Held Pocket Urine Specific Gravity Refractometer- Item Weight 0.45 vs 0.55 pounds (-18%)
Atago 3840 Digital Hand Held Pocket Refractometer- Item Weight 0.45 vs 0.62 pounds (-27%)
Frequently asked questions
Can the Atago 3741 measure sugar or salinity?
The listing describes urine specific gravity from 1.0000 to 1.0600 only. No Brix or salinity scale is described.
How do I calibrate the Atago 3741?
The description says it can be calibrated with water, and a zero key gives an easy reset.
Can the Atago 3741 be rinsed clean?
Yes. The body is IP-65 rated for dust and low pressure water, and the prism head is IP-67 rated for liquid immersion for ease of cleaning.
What happens if the Atago 3741 is used in bright light?
An external light interference feature displays a warning message when direct light is detected.