
PRODUCT INFO
The AsReader Slim is an ultra-thin and lightweight barcode reader that can be attached to Android devices. Its sleek design offers excellent portability, making it ideal for extended use with minimal fatigue. It supports high-precision reading of both barcodes and 2D codes, making it suitable for a wide range of applications including inventory management, logistics, and retail operations. By interfacing with smartphones, it serves as an easy to use, high-performance handheld terminal.

| Model Number and Product Description |
ASR-A25S1 / ASR-025S2 / ASR-A25S3 / ASR-A25S4 AsReader SLED/DOCK-Type 2D and 1D Barcode Scanner |
|
|---|---|---|
| Barcode | Image Sensor | High Resolution 2D CMOS sensor |
| Scanning Depth *Reading distance varies depending on barcode type and size. |
1D: ≥ 3 mil 2D: ≥ 6.67 mil EAN13: 65mm~350mm (13mils) Code39 :50mm~125mm (5mils) QR Code :30mm~170mm (15mils) Data Matrix:45mm~120mm (10mils) PDF 417 :50mm~125mm (6.7mils) |
|
| Scanning Angle | Pitch: ±60°, Roll: 360°, Skew: ±60° | |
| Supported Symbologies | 1D: Code128, EAN-13, EAN-8, Code39, UPC-A, UPC-E, Codabar, Interleaved 2 of 5, ITF-6, ITF-14, ISBN, ISSN, Code 93, UCC/EAN-128, GS1 Databar, Matrix 2 of 5, Code 11, Industrial 2 of 5, Standard 2 of 5, AIM128, Plessey, MSI-Plessey 2D: PDF417, QR Code, Micro QR, Data Matrix |
|
| Light Source | Illumination:White LED Aimer:Red Laser(650nm) |
|
| Power Supply | Battery | This product is powered directly by the smart device. |
| Charging Method | USB Type-C * Please use a USB PD–compatible charging adapter or a charging adapter with an output voltage of 5V. |
|
| Key Input | Hardware Buttons | Trigger, Reset Button |
| Communication | Interface | USB Type-C * Please use a USB PD–compatible charging adapter or a charging adapter with an output voltage of 5V. |
| Exterior Specifications |
Dimensions (W × D × H) | ASR-A25S1: 6.61 x 3.15 x 0.59 inches (167.9 x 80.0 x 15.0mm) ASR-A25S2: 6.89 x 3.11 x 0.63 inches (175.0 x 79.0 x 16.0mm) ASR-A25S3: 6.77 x 3.15 x 0.75 inches (172.0 x 80.0 x 19.1mm) ASR-A25S4: 7.44 x 3.35 x 0.75 inches (189.0 x 85.1 x 19.1mm) * Excluding protrusions. |
| Weight (including battery) | ASR-A25S1: 2.65 oz (75 g) ASR-025S2: 2.65 oz (75 g) ASR-A25S3: 2.82 oz (80 g) ASR-A25S4: 2.96 oz (84 g) |
|
| Exterior Material | PC+ABS, TPU | |
| Product Color | Black | |
| LED Indications | Red: When connected to USB charging cable Blue: When connected to a smart device |
|
| Environmental Performance |
Operation Environment | 14°~113°F (-10℃~45℃) at 20~85 %RH/td> |
| Charging Environment | 32°~95°F ( 0℃~35℃) at 10~90 %RH | |
| Storage Environment | -4°~140°F (-20℃~60℃) at 10~95 %RH | |
| IP Rating | IP54 Compliant for Dust and Moisture Resistance | |
| Drop Test | AsReader unit dropped from 5 feet (1.5m) to all six-sides and all four-corners, once each | |
| Certifications / Standards | iOS and Android | |
| Support OS | FCC, FDA | |
| Supported Devices | ASR-A25S1:Google Pixel 8a/7a/6a ASR-025S2:iPhone 15/16/16e ASR-A25S3:KYOCERA DIGNO SX4 ASR-A25S4:Galaxy A25 5G(Japan Model) /A06 4G/A06 5G |
|
| Version | Update date | Size | ||
| User manual | Version 3 | 28 Nov. 2025 | - | Download(PDF) |
| Barcode Setting Manual | Version 2 | 27 Oct. 2025 | Download(PDF) | |
| ASR-A25S1 Demo App User’s Manual | Version 1 | 15 May. 2025 | 454KB | Download(PDF) |
Please read the License Agreement below before downloading.
Please read carefully before using the Software Development Kit "AsReader SDK" (hereafter "SDK") that is developed and offered by the Company (Asterisk Inc.).
In offering the SDK we require you to agree to the Terms of Use below as a condition of use.
Please read the Terms of Use below before installing the software.By installing the SDK you agree to the Terms of Use below. If you cannot agree with the Terms of Use below, please refrain from using the SDK.
The purpose of these Terms of Use is to determine the common Terms of Use for the SDK that is offered by the Company to the users of the SDK as they are determined in the next Article.
The licence period of the licence described in the preceding article (hereafter: "This Licence") shall be one year from the time the User agrees to these Terms of Use.
However, unless declared otherwise by either the Company or the User up to 30 days prior to the expiration of such period, This Licence shall be renewed for one year under the same conditions.
The User shall not, with respect to the Target Software and the SDK, perform any of the following acts:
If the User needs support with the API Specification document or the content of the Sample Programs, or with the development of User Software, the Company is able to provide this support to the User for a fee.
Furthermore, the contents and conditions of such support shall be determined in a separate contract to be signed by both the User and the Company.
Upon termination of this License, the User shall immediately dispose of any API Specification documents, Libraries, Sample Programs and Modification Programs, and any copies thereof.
Even if this License is terminated, Articles 5, 6, 7, 10, 12 and 13 of these Terms of Use will remain in effect.
The Company and the User shall not transfer all or part of the rights or obligations under these Terms of Use to a third party without obtaining prior consent from the other party.
In the event litigation is needed to resolve a dispute arising from these Terms of Use, the Company and the User shall in the first instance be subject to the exclusive jurisdiction of the Tokyo District Court .
| Version | Update date | |||
| .NET MAUI (for .NET 8) | SDK | 5.8.0_1.2.0 | 20 Nov. 2025 | Download(ZIP) |
| Sample | 1.1.0 | 20 Nov. 2025 | Download(ZIP) | |
| .NET MAUI (for .NET 9) | SDK | 5.8.0_1.2.0 | 20 Nov. 2025 | Download(ZIP) |
| Sample | 1.1.0 | 20 Nov. 2025 | Download(ZIP) | |
| .NET MAUI | SDK Manual | 1.0 | 17 Dec. 2025 | Access Link |
| Flutter | SDK | 1.2.0 | 28 Nov. 2025 | Download(ZIP) |
| Sample | 1.2.0 | 28 Nov. 2025 | Download(ZIP) |
| Version | Update date | Size | |||
| Java | SDK | 1.0.0 | 15 May 2025 | 261KB | Download(ZIP) |
| SDK manual | 1.0.0 | 15 May. 2025 | 603KB | Download(PDF) |
| Version | Update date | ||
| FW【!】 | 1.0.0 | 2 Dec. 2025 | Download(ZIP) |
【!】Caution when updating firmware
Please do not do any of the following while the firmware is updating, as it will lead to a malfunction which does not fall under the warranty:
・Remove the AsReader from the iOS device
・Allow the iOS to go into sleep-mode
・Quit, close or minimize the firmware update application.
Please check the description of the following links page.
The Mfi registration application if necessary also thank you from the following link page.
●iPhone®, iPad® and iPod touch® are registered trademarks of Apple® Inc.
●All other trademarks are property of their respective owners.