





DM41L System Calculator
The DM41L is a clone of the HP-41CX in a landscape orientated layout similar to the Voyager series, including a real-time clock. The alphanumeric LCD screen of the HP-41C revolutionized the way a calculator could be used, providing user-friendliness (for its time) and expandability (keyboard-unassigned functions could be spelled out alphabetically). By using an alphanumeric display, the calculator could tell the user what was going on, displaying meaningful error messages ('ZERO DIVIDE') instead of simply a blinking zero. It could also prompt the user for explicit arguments ('ENTER RADIUS') instead of just displaying a question mark.
DM41L System Calculator calculator features
- Modern clone in a modern hardware architecture
- Uses proven RPN logic
- Programmable
- Alphanumeric display
- Custom program labels
- Setup Menu for easy access to configuration items
DM41L System Calculator hardware features
- Rugged design based on a Titanium shell
- USB I/O for complete calculator contents backup
- Single coin-cell operation
- Low power — long battery life
- DM41 Encoder/Decoder
Convert programs for the DM41L and DM41X calculators
- Voyager Flashing Tool
Update your calculator's firmware
- Voyager WebTool
Program conversion and Flashing tool for Voyager series calculators
| Aspect | Details |
|---|---|
| Construction | Case made from a sand-blasted Grade 1 Titanium housing, brown anodized and laser engraved |
| Software | ARM microcontroller emulating the NUT processor |
| Processor | LPC1115 32-bit ARM Cortex-M0 microcontroller |
| Memory | 64 kB internal flash, 8kB RAM |
| Display type | Reflective Positive FSTN |
| Display resolution | 132 × 16 pixels |
| Display active area | 69.1 × 10.0 mm |
| Display dot pitch | 524 × 626 µm |
| Connectivity (PC) | USB-C port for firmware update and data exchange via CDC |
| Battery type | 1 × CR2032 lithium coin cell, 3.0 volts |
| Battery life | Up to 5 years |
| Sound | 4 kHz resonance frequency Piezo-electric buzzer |
| Size | 129 × 79 × 13 mm |
| Weight | 150 g |
| Warranty | 5 years |







