Customer Display Module

WDM-M2027 VFD Display Module

Mini VFD Module 20 x 2 Multi-Command Emulation USB / RS-232

The WDM-M2027 is an ultra-slim, compact VFD customer display module featuring a 20-column by 2-line format with 3.75 × 6.75 mm dot-matrix characters. Delivering 700 cd/m² high-brightness blue-green illumination, it ensures sharp readability even in bright ambient lighting. Measuring just 146 × 24 × 49 mm, weighing only 79 g, and consuming a mere 2W, it is engineered for space-constrained mini POS systems, slim terminals, and embedded kiosks. The module supports several command sets, offers optional USB or RS-232 interfaces, and boasts a 30,000-hour MTBF—providing a dependable, space-saving display solution for compact retail and hospitality setups.

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Technical Specifications

Item	Description
Display Method	VFD display (blue-green)
Number of Columns	20 columns × 2 lines
Brightness	700 cd/m²
Character Structure	5 × 7 dots
Character Size	3.75 (W) × 6.75 (H) mm
Character Sets	96 alphanumeric, 13 international character sets, 1 user-defined character set, 14 code pages
Commands	ESC/POS, CD5220, DSP-800, AEDEX, ADM788, UTC (Standard / Enhanced), POS7300 compatible
MTBF	30,000 hours (power-on time)
Power Supply	DC 5 V (USB powered) / External DC power 9 ~ 35 V
Power Consumption	2.0 W
Interface	RS-232 or USB (optional)
Weight	79 g
Dimensions	146.0 (W) × 24.0 (D) × 49.0 (H) mm
Operating Temperature	0 ~ 45 °C
Storage Temperature	-20 ~ 60 °C
Operating Humidity	10% ~ 90% RH
Storage Humidity	10% ~ 90% RH