Koso Air/Fuel ratio meter & RPM data logger with BOSCH® LSU 4.9 sensor

The Koso DL-03A with BOSCH® LSU 4.9 sensor shows the air-fuel ratio, has an RPM data logger, and can optimize the driving performance thanks to the associated playback ability. A tachometer, digital voltmeter and 5 different LED signal lights are also integrated.

A special feature of the DL-03A is the heated screen, which optimizes the view of the displays in cold weather conditions.

The large digits and the bright background lighting also make it easier to read, and the meter is easy to use, compact, lightweight, and can be mounted on many vehicles such as snowmobiles and UTVs.

Specifications: 

Tachometer

Display range: 0 ~ 14,000 RPM

Display unit: 100 RPM

Tachometer (Display in segments)

Display range: Displays in 14 segments (100 RPM each segment)

Air-fuel ratio

Display range: 9.0 ~ 24.0

Setting unit: 0.1

Air-fuel ratio (display segments)

Display range: Displays in 12 segments

Warning for rich air-fuel ratio

Setting range: 9.0 ~ 14.7

Setting unit: 0.1

Default value: 14.4

Warning for lean air-fuel ratio

Setting range: 14.7 ~ 24.0

Setting unit: 0.1

Default value: 15.0

RPM input pulse

Setting range: 0.5, 1, 1 .5, 2, 2 .5, 3, 4, 5, 6,

7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

Max. RPM

Display range: 0 ~ 14,000 RPM

Max. Air-fuel ratio (value of ratio) record

Display range: 9.0 ~ 24.0

Max. Air-fuel ratio (λ ) record

Display range: 0.61 ~ 1.63

Type of RPM signal

Setting range: Hi Act ` Lo Act

Default value: Hi Act

Warning for RPM

Setting range: 1,000 ~ 14,000 RPM

Setting unit: 100 RPM

Default value: 8,000

Warning for low voltage

Setting range: 8.0 ~ 13.0 V

Setting unit: 0.1 V

Default value: 11.5 V

Record

Maximum number of recorded runs: 50 runs

Maximum recording time for a single record run: 99min 59sek 90; the recording will stop upon reaching the maximum time.

Total recording time: Approximately 3.15 hours

Maximum RPM and air-fuel ratio for a single run

Scope of recording for RPM: 0 ~ 14,000 RPM

Air-fuel ratio (value of ratio) record: 9.0 ~ 24.0

Air-fuel ratio (λ ) record: 0.61 ~ 1.63

Backlight brightness

Setting range: 1 - 5 (darkest) ~ 5 - 5 (brightest)

Default value: 5

Operating voltage

DC 12V

Temperature range

-10 ~ +60°C

Specifications

JIS D 0203 (S2)

Meter Size

72 x 32.3mm

Meter Weight

~ 100g