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SwissMicros DM41L RPN Calculator - Landscape HP-41CX Clone

Home > Students > Scientific Calculators > SwissMicros DM41L RPN Calculator - Landscape HP-41CX Clone

SwissMicros DM41L RPN Calculator - Landscape HP-41CX Clone Image - Click to enlargeThe 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.


  • 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 mm 10.0 mm / 2.72" x 0.39"
  • Display Dot Pitch: 524 m 626 m
  • Connectivity (PC): USB Mini-AB 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 mm 79 mm 13 mm / 5.08" x 3.11" x 0.51"
  • Weight: 150 g / 5.29 oz
  • Warranty: 5 years

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