TSC Alpha-40L — 4-inch mobile label printer with Wi-Fi and Bluetooth
104 mm print widthWi-Fi + Bluetooth + NFC6200 mAh batteryPeeler · colour LCD
The TSC Alpha-40L (A40L-A001-1002) is a 4-inch direct thermal mobile printer that prints shelf labels, shipping labels, receipts and tickets at 203 dpi on media up to 112 mm wide, carried on a belt or shoulder strap by warehouse, retail, delivery and field staff.
This configuration connects over Wi-Fi (802.11ac), Bluetooth 4.2 and USB-C, has a passive NFC tag for tap-to-pair, a 2.3-inch colour LCD and the peel-off module for dispensing labels one by one. A 6200 mAh smart battery powers a full shift, and the printer is rated IP54 with 1.8 m drop resistance.
Before you order: This is the Wi-Fi + Bluetooth model. Your app or WMS must print in TSPL, ESC/POS or one of the emulated languages (ZPL2, EPL2, CPCL) — tell us your software and we will check before you order.
What's in the Box
- TSC Alpha-40L printer
- Li-ion smart battery (6200 mAh)
- Power adapter
- Belt clip
- Quick start guide
What It Means in Practice
- Print 4-inch shipping labels and shelf-edge labels where the work is done, instead of walking back to a desktop printer.
- Wi-Fi puts the printer on the warehouse network for WMS or ERP jobs; Bluetooth pairs it to a single handheld or phone, and NFC makes pairing a tap.
- The peeler hands out the next label already separated from the liner — faster when you label item after item.
- ZPL2/EPL2/CPCL emulation lets it replace many existing mobile printers without rewriting label templates.
What Will Not Work
- It does not print on thermal-transfer (ribbon) media — direct thermal labels and paper only.
- Linerless media needs the separate linerless kit/version.
- Rolls larger than 67 mm outer diameter or wider than 112 mm will not fit.
- A protective case, extra batteries and charging cradles are not included.
Key Features
4-inch output
104 mm print width at 203 dpi and up to 127 mm/s.
Three ways to connect
Wi-Fi 802.11ac, Bluetooth 4.2 and USB-C, plus NFC tap-to-pair.
Full-shift battery
7.4 V 6200 mAh Li-ion smart battery.
Rugged
1.8 m drop (2.5 m with case), IP54, -20 to 50 °C operation.
Technical Specifications
| Identification |
| Part Number |
A40L-A001-1002 |
| EAN / GTIN |
5704174820031 |
| MPN |
A40L-A001-1002 |
| Brand |
TSC |
| Printing |
| Print method |
Direct thermal |
| Resolution |
203 dpi |
| Max print width |
104 mm |
| Max print speed |
127 mm/s (5 ips); 2–3 ips in peel mode |
| Printer languages |
TSPL-EZC (EPL2/ZPL2/CPCL emulation), ESC/POS |
| Media |
| Media width (with liner) |
50.8–112 mm |
| Max roll diameter |
67 mm |
| Core |
12.7 mm (19.1 mm with adapter) |
| Thickness |
0.06–0.16 mm |
| Peeler |
Peel-off (dispense) module standard |
| Connectivity |
| Interfaces |
USB-C 2.0, Wi-Fi 802.11a/b/g/n/ac, Bluetooth 4.2, NFC (passive tag) |
| Memory |
128 MB RAM, 128 MB flash, microSD up to 32 GB |
| Display |
2.3" colour LCD, 320 x 240 |
| Power & Durability |
| Battery |
7.4 V, 6200 mAh Li-ion smart battery |
| Drop |
1.8 m (2.5 m with protective case) |
| Sealing |
IP54 (per TSC datasheet) |
| Operating temperature |
-20 to 50 °C |
| Physical |
| Dimensions |
160 x 191 x 79 mm |
| Weight |
0.985 kg with battery |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
TSC warranty per datasheet: printer 2 years, battery 1 year, print head 25 km or 12 months, platen 50 km or 12 months — claims handled through Singular |
Frequently Asked Questions
Can it replace a Zebra mobile printer without changing my labels?
In many cases yes: it emulates ZPL2, EPL2 and CPCL. Send us a sample label or your software name and we will confirm.
Does it print receipts too?
Yes, it supports ESC/POS and prints on direct thermal receipt paper as well as labels within 50.8–112 mm width.
How long does the battery last?
It uses a 6200 mAh smart battery; real runtime depends on label coverage and Wi-Fi use, so plan a spare battery for double shifts.
Singular Expert Insight · Buyer's Guide
The Alpha-40L suits teams that print 4-inch labels on the move and need Wi-Fi as well as Bluetooth. Check your label language first; most WMS templates in ZPL work through emulation. Direct thermal
labels are the only consumable.
✓ Buy it if you need 4-inch labels or receipts printed on the move over Wi-Fi or Bluetooth.
✕ Skip it if you need 2- or 3-inch output only, or thermal-transfer (ribbon) printing.
→ Also consider the TSC Alpha-30L for 3-inch media.
Not sure it fits your setup? Send us the model of your rack, switch or device and we will check compatibility before you order.