Can tester SAFELY be used to test ECM signal going to coil and/or injector?

Its current draw is supposed to be about 18mA (green) and 24mA (red), however, the product ships with the following Safety Precautions: 1. For 12V DC systems only. NOT FOR ANY AC VOLT SYSTEM. 2. DO NOT USE THIS TOOL ON COMPUTER CIRCUITRY. 3. DO NOT TEST OR PUNCTURE SPARK PLUG WIRES WITH THIS TOOL. 4. Never use a Test Light to diagnose automotive air bag...

Is this probe safe enough to test 5V automotive reference wiring? Computer safe?

Hello. To be honest I’m not sure if it will pickup a 5v refurance I use it On 12 volt I have a power probe with the 5v connector for it. So I’m not 100 on the test ligh work on that

Does this tester require a connection to the car battery?

Has two alligator clips to connect to a car battery and a power plug so you can plug it into the power source in the dash. Works on any 12 volt circuit. I use it to fix cars and my electric trains.

Brand	Innova
Power Source	Battery Powered
Style	Unique
Colour	Green,Red,White
Item Weight	227 g
Item dimensions L x W x H	16.5 x 4.4 x 26 Centimeters
Measurement Type	Voltage Tester
UPC	666669941063 521375004948 031112406015 758353141870 790725488732 042173034208 999990982482 021112418323 421730342084 043994891513 523161038885 077348890945
Manufacturer	Equus Products
Global Trade Identification Number	00042173034208
Country of Origin	USA
Model number	3420
Number of Memory Sticks	1
Product Dimensions	16.51 x 4.45 x 26.04 cm; 226.8 g
Batteries	3 AA batteries required.
Item model number	3420
Item Height	10.25 Inches
Item Width	1.75 Inches
Are batteries included?	No

INNOVA 3420 Smart Test Light/Circuit Tester

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