Ultra-Compact Handheld Terminal

BT-1000 series

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Handheld Terminal BT-1550

BT-1550 - Handheld Terminal





32bit RISC CPU

Main memory

RAM capacity

64 MB (internal user area: 16 MB)

Flash ROM capacity

32 MB (internal user area: 15 MB)


Display method

2.2" TFT colour LCD, 65,536 colours

Number of dots

240 (W) × 320 (H) (QVGA)

Displayed character type

Half-width (alphanumeric and katakana), Full-width (First and second standards of JIS kanji, Simplified Chinese (GB18030-2000), Traditional Chinese (Big5))

Maximum number of displayable characters

16-dot fonts

Half-width characters (magnification): 30 digits × 20 lines / Full-width characters (magnification): 15 digits × 20 lines*1

24-dot fonts

Half-width characters (magnification): 20 digits × 13 lines / Full-width characters (magnification): 10 digits × 13 lines*1

32-dot fonts

Half-width characters (magnification): 15 digits × 10 lines / Full-width characters (magnification): 7 digits × 10 lines*1


High-intensity white LED (automatic brightness control according to illumination sensor)

Operation confirmation LED

Large-size bar LED (red, green, orange)

Input keys

Key types

Set of arrow keys × 1 (4 directions), trigger keys × 2, function keys × 3, multifunction keys × 2 (L, R), data input keys × 14 (0 to 9 keys, ENT key, clear key, minus key, decimal point key), power key × 1


LED (orange)


Light source

Reading light source

High-intensity red LED

Pointer light source

Visible semiconductor laser (655 nm), output: 390 µW
Class 1 laser product (JIS C6802)

Scanning rate

Minimum resolution

2D code: 0.191 mm, Barcode: 0.127 mm*2

Reading distance

35 to 270 mm (CODE39 narrow bar width: 0.508 mm)
40 to 190 mm (CODE39 narrow bar width: 0.254 mm)
25 to 205 mm (QR cell size: 0.508 mm)
75 to 140 mm (QR cell size: 0.254 mm)

Scanner area



Supported barcodes, supported codes

JAN/EAN/UPC (add-on code support), CODE128, GS1-128, CODE39, NW-7, CODE93, ITF, Industrial 2of5, COOP 2of5, QR code, Micro QR, DataMatrix (ECC200), PDF417, GS1-DataBar (RSS-14, RSS-14 Truncated, RSS-14 Stacked (Omnidirectional), RSS Limited, RSS Expanded, RSS Expanded Stacked), Composite

Optical communication interface


Conforms to the physical layer of IrDA ver. 1.2

Communication speed

9600/19200/38400/57600/115200 bps

Serial communication interface


RS-232C-compliant (connected to PC with dedicated cable)

Communication speed

9600/19200/38400/57600/115200 bps

USB interface


USB 2.0 Full Speed (virtual COM)

Connector type

USB Mini-B

Communication speed

9600/19200/38400/57600/115200/230400/921600 bps

Communication unit connection interface



Communication speed

921,600 bps max. (depends on communication unit classification)

Wireless LAN

Wireless standards

Radio frequency

Communication distance

Security methods


Wireless standards

Radio frequency

Supported profiles

Communication distance

External media

Supported media

microSD or SDHC card

Supported capacity

32 GB max.


Scale: 16 levels, Volume: 3 levels

Vibration function



Automatic calendar (year, month, day, hour, minute, second; up to year 2079), accurate within 80 seconds per month (normal temperature)

Power supply

With standard rechargeable battery pack (BT-B10)

Dedicated lithium ion battery pack (3.7 V, 1100 mAh)
Continuous usage time: Approx. 40 hours*3, Cycle life: Approx. 500 cycles

With high-capacity rechargeable battery pack (BT-B12)

Dedicated lithium ion battery pack (3.7 V, 1880 mAh)
Continuous usage time: Approx. 70 hours*3, Cycle life: Approx. 500 cycles

With dry cell battery pack (BT-B15)

AAA battery × 3 (alkaline battery, rechargeable nickel-metal hydride battery)
Continuous usage time: Approx. 22 hours with alkaline batteries*3*4, Approx. 25 hours with rechargeable nickelmetal hydride batteries*3

Backup battery

Built-in lithium secondary battery, Backup time: Approx. 1 hour

Environmental resistance

Enclosure rating

IP54 (JIS water-resistant)

Ambient temperature

When using BT-B10/B12: -20 to +50 °C (No freezing), when charging: 0 to +40 °C
When using BT-B15: 0 to +50 °C (No freezing)

Storage temperature

-20 to +60 °C

Relative humidity

35 to 85 % RH (No condensation)

Storage relative humidity

Drop resistance

2.0 m (onto concrete), With protector (OP-87120): 2.5 m (onto concrete)*5


VCCI Class A


With standard rechargeable battery pack attached: 159 × 50.5 (46.4) × 42 (25) mm
With high-capacity rechargeable battery pack attached: 159 × 50.5 (46.4) × 42 (30) mm
With dry cell battery pack attached: 159 × 50.5 (46.4) × 42 (30) mm
(The value in parenthesis is the grip dimension.)


With standard rechargeable battery pack attached: Approx. 184 g
With high-capacity rechargeable battery pack attached: Approx. 201 g
With dry cell battery pack attached: Approx. 202 g

*1 The number of displayable characters is the maximum value when the status display is not visible. If the status display is shown, the number of vertically displayed characters with a 16-dot font is 2 lines or 1 line with a 24- or 32-dot font.
*2 Operation confirmation with a KEYENCE device uses the following standard codes: QR and DataMatrix (2D codes), and CODE39 and CODE128 (barcodes).
*3 This is the continuous usage time when code reading is performed 2 times every 10 seconds at normal temperatures with the operation confirmation LED and vibration function turned off, the buzzer turned on (at a low volume), the backlight turned on (at low brightness), and the operation speed set to standard.
*4 Dry cell battery usage is assumed for emergency operations.
*5 This is a test value and is not guaranteed.

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