This is mini electric current tester is high in precision and easy to use. It has large testing range 0-30A and reversed polarity connecting protection， very safe and convenient to use widely in many circumstances. Even if you're a green hand， you can apply it to test electric current.

Features:
High Precision: test and display electric current to 5 digits.
Large Testing Range: 0-3A to better suits your needs.
Flexible Power Supply: No need of isolating power， it can powered by the system common ground.
Have the reversed polarity connecting protection to prevent the damage of ammeter.
Mini Appearance: portable and convenient to use in many circumstances.

Specifications:
Color: Black
Data Display: LED Screen
Current Testing Range: 0-3A 
Precision: 5 Digits
Refresh Speed: !#!gt!*! 3 times/second
Testing Accuracy: ±(0.5‰ + 2 bytes) (means that the biggest error is within 1.7mA， normal error is within 0.5mv)
Power Supply: DC 3.5-30V 
Working Temperature: -10℃-65℃
Cable Length: 14cm / 5.51in
Item Size: 4.6 * 1.7 * 2.5cm / 1.81 * 0.67 * 0.98in
Item Weight: 20g / 0.7oz
Package Size: 5 * 2 * 3cm / 1.97 * 0.79 * 1.18in
Package Weight: 20.5g / 0.72oz

Note:
1.This ammeter needs independent power supply. When connected to power supply， it will display 0.0000 ( if it is hung， it will show 0.0001）
2. Thin Red line + : Positive Electrode    Thin Black Line -: Negative Electrode (For Power Supply)
   Thick Red line VIN: Positive Electrode of Testing Signal     Thick Black Line VIN: Negative Electrode    of Testing Signal
3.This ammeter can be connected between the negative electrode of the tested equipment and the negative electrode of the power supply.

Package List:
1 * Ammeter