2 in 1 LED Dial RPM for Auto Motor Rotating Speed

- and high quality

Features:

we adopt 0.36in dial tube, suitable for 1~8 cylinder autos and motors 12Vengine.

Our products are with shells and shine brighter.

Display battery voltage before and afrer engine start

When 12V car battery over voltage (overvoltage) or undervoltage, it will be fing alarm.

When battery voltage is le than 11V (< 11V ), or hgiher than 15V (>15V), it will flickering alarm and display the real battery voltage.

Specification:

Working Voaltage: 8v~17v

Working Current: 40mA

Voltage Accuracy: ±0.1V；

Rotating Accuracy: ±30round/min

Maximym Rotating : 100-31800round/min

Color: Red

Quantity: 1 Pc

Other Fixtures:

1. This Auto car RPM meter 2 in 1 function meter use Ul bright 0.36 inch dial tube dial display instrument, driven by high performance mcu. Can be used in automobile, motorcycle and other electronic ignition vehicles. Using high integrated design, the size and appearance of the same size as the single function of . Can be easily installed in the card into the supporting housing.

2. Behind the instrument on is for adjusting internal s, when it is discovered that the display speed and actual speed inconsistency , then we need to adjust the s (motorcycle idle 1100-1600, idling 750-1200, engine idling in the just started on the high side, hot car stability decreased, such as air conditioning load change will influence idle).

s depending on the type of engine (such as the horizontal bar, steel, four cylinder), distribution, and wiring position are concerned, specifically according to the s in more detail below as a reference. The mismatch phenomenon is displayed, and the speed of the actual difference, are integer times or several times. This reset the normal s on it.

Before installation, please kind carefully read the following details, probl timely and contact customer service. We are very happy to your answer to problem solving.

How to adjust the rotate speed s if the real speed is different from the display speed

pre on for more than 3 seconds to enter setting state, short pre select frequency, pre more than 3 seconds to confirm , ,

then it is ok. The s are saved in the internal chip, even if the power cut and s donen't lost.

this meter default s is 2

2.1 s: adapt to the frequency of 8.33Hz/1000 RPM per cylinder ignition EFI car use.

2.2 (the default setting): suitable for frequency 16.66Hz/1000 of four - cylinder EFI (second ) and two-stroke and four stroke motorcycles.

2.3 s: three cylinder cars for the use of frequency 25.00Hz/1000 rpm

2.4 s: four cylinder cars are suitable for frequency 33.33Hz/1000 rpm turn (with electric cars) an .

2.5 s: eight cylinder cars are suitable for frequency 66.67Hz/1000 rpm turn.

2.6 s: six cylinder cars are suitable for frequency 50.00Hz/1000 rpm turn.

3. This meter displays car engine speed automatically. When car engine started, it begin to show the speed. If battery over voltage,which is bier than 15V(>15V)

The meter display speed will be flickering and fing, which is alarm. and notify you this car battery voltage is over. If enginer speed over 10000 rpm/m, for example 15000r/min, the car will display -150

4. Working Volt :DC 8V -17V

Current :40mA

Voltage accuracy: +/- 0.1V ;

Speed accuracy: +/- 30r/min

5. How to wire:

Blawire : Ground wire, connect battery negtive output (DC - )

Red wire: Power supply, connect battery positive output (DC +)

Yellow wire : Speed signal cable, connet to ignitor outlet or trier lines

6. Installation guide :

6.1 Please connect Red and Blawire in advanced to e sure display is normal to work then you connect other wire. Attention!

6.2 The speed signal from the engine ignition signal, can have many wire connections

6.2.1 . Electronic wire (some car models have a on special wire for speed, if connect, will have the best quality signal)

6.2.2 The high voltage ignition inlet wire (if car have no special speed line, we ase connected here)

6.2.3 Ignition outlet wire

6.2.4 The ignition trier inlet line

6.2.5 The trier outlet

Because of each car line is not always the same , above all wiring position may be varying degrees of interference ,result the speed signal is not stable,

If your car model have special electronic line,connect it and signal will be absolutely no problem,So best choice is 6.2.1

if no have special electronic line, then connect high voltage ignition inlet wire is also good.So second choice is 6.2.2

Very Attention!!!

Never connect singal cable to high voltage of high voltage ignition outlet wire. You will this auto car meter!!!