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These printers come equipped with a full line of mobile printing accessories that save money and time. Options for this series include linerless printing tools, remote printer management software, and much more.
The Alpha-4L direct thermal portable label printer features a rugged design and reliable performance. Accessories such as a linerless printing option save time, money, and resources. The Alpha-40L mobile printers also provide a full line of accessories to assist in performing diverse labeling tasks while on the go, especially in rigorous logistics applications. Unlock the power of greater visibility into real-time data on the health and performance of your Alpha-40L printer with included remote printer management software.
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Rugged And Reliable Mobile Printing Delivers Your Labels Wherever Your Need

TSC Auto ID built its reputation on building rugged and reliable thermal label desktop printers. We have used this engineering and manufacturing expertise to design some of the industry’s best reliable and rugged portable label printers.

The TSC Alpha-4L 4-inch (102 mm) direct thermal portable label printer features a rugged design and reliable performance that will continue to operate long after other printers have failed. As with all TSC-built printers, we back up our claims with our standard two-year warranty.

The Alpha-4L is a comfortable, lightweight printer capable of working with any mobile label, document, or receipt printing application where you need labels printed wherever you are.

The TSC Alpha-4L is designed for the tough life of the road, warehouse, or retail location. With its optional case, the printer is IP54-rated to resist dust and water and can endure a 6-foot fall and keep printing.

These small and light printers can be worn comfortably for a full shift, without interfering with the user’s tasks. Use USB, or optional Bluetooth®, 802.11 a/b/g/n Wireless or Serial to connect to a mobile computer or even a smartphone and produce clear, accurate labels hour after hour.

The Alpha-40L mobile printers expand our line-up to offer advanced productivity and management features for a premium mobile printing experience.

The Alpha-40L 4-inch performance mobile printer was designed to meet military-grade standards for drop and vehicle vibration. Ideal for enterprise professionals on the go.

The TSC Alpha-40L printers have compatibility with SOTI Connect remote printer management for greater visibility into real-time data on the health and performance of the devices.

The new mobile printer also features a smart battery management system. The smart batteries within the mobile printer can report the state of battery capacity, charge, and history of charge cycles.

With the Apple-certified MFi Bluetooth® 5.0 connection and 802.11 a/b/g/n/ac Wi-Fi fast roaming features, the Alpha-40L not only provides reliable and seamless communication with users’ devices, it also securely prints labels wherever they are needed.

The Alpha-40L Near Field Communication (NFC) makes it simple to connect to the printer directly from a compatible device. NFC capability automatically establishes a direct connection between your NFC-enabled smartphone or tablet and an Alpha-40L printer, so you can print or scan using any number of applications without having to connect to a network or enter any login credentials.

Additional information


203 dpi (8 dots/mm)

Print Method

Direct thermal only


LCD with buttons, LED with buttons

Hardwire Connectivity

Serial RS-232, USB

Wireless Connectivity

Bluetooth, Bluetooth MFi, Wi-Fi

Enterprise Printer Management

TSC Console



Max. Print Speed

Up to 4 ips (102 mm/s) (2, 3 ips for peeler mode)

Max. Print Length

90" (2,286 mm)

Max. Print Width

4.09" (104 mm)




16 MB

Expandable Flash

microSD card reader, up to 4 GB

Internal Label Capacity

2.64" (67 mm) OD

Max. Media Width

2" – 4.4" (50.8 – 112 mm) with liner

Media Type

Die cut, black mark, receipt, fan-fold, linerless, continuous (outside wound)

Min. Label Length

0.5" (12 mm) 1.0" if using peeler


Plastic with rubber over-mold construction

Programming Languages


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Alpha 4L