Big Spring Tire Sale: SAVE UP TO 25%* on select tires and wheels from quality brands.

Shop Now

Our Spring Big Red sale is on now. Save up to 50% with deals for the home, garage and more.

Shop Now
CANADA'S STORE

Credit Offered* Learn More
Wishlist
Support Order Status
FR

Spend More, Get More CT Money®*

with Triangle Rewards® on Thursday, April 23, 2026. *Pre-tax purchase. Select items. Conditions apply. Shop Now

Spend More, Get More CT Money®* with Triangle Rewards® on Thursday, April 23, 2026. *Pre-tax purchase. Select items. Conditions apply. Learn More
Innova 3420 Smart Test Light Composite_or_Mixed
Innova 3420 Smart Test Light Composite_or_Mixed
Innova

Innova 3420 Smart Test Light

#025-1017-8
View Product Details
View Similar Items
$34.99
Top Rated
Buy Online :
Pick up at Leduc, AB
7 In Stock
Get it Today !

Pick up available 10:30 a.m., Apr 23

Quantity updated to 1
New digital payments available on checkout page:
Also Find It in Store:

Only 7 left 

at Leduc, AB
Aisle 10
Add to Registry

Quebec residents: For information on maintenance and repair click here.

Innova
Innova

Innova 3420 Smart Test Light

$34.99

Similar Items

Product Details

The INNOVA Smart Test Light helps safely check voltage and ground connections on electronic systems like wiring, fuses, sensors and switches. Connecting via a cigarette lighter adapter and removable twin alligator clips, the six-foot leads provide a long reach. The transparent handle displays bright LEDs to identify connections - white when properly connected to source, red when voltage is present, and green for ground connections. The versatile tool helps technicians and DIYers troubleshoot electrical issues quickly and easily.

  • Innova 3420 Smart Test Light is designed to safely check voltage and/or grounds

  • Works on several electronic systems including wiring, fuses, batteries, cabling, sensors, switches and more

  • Ideal for diagnosing automotive towing light problems and general electrical repairs

  • 12 - 24V range works with passenger vehicles and heavy-duty trucks

  • Connects using a cigarette lighter/power plug or directly to battery with twin alligator battery clamps

  • Transparent handle shows bright LEDs to identify connections: white (positive/proper connection to source), green (ground present) and red (voltage present)

  • 6' (182cm) long test lead for more reach

  • Ergonomically designed grip for user comfort and saftey

Part Number 3420
Accessories List Auxillary Power Outlet Adapter
Connection Type Alligator Clamp
Cord Length (cm) 182.00 cm
Product Use(s) Automotive, Marine
Type Of Diagnostic Tool Circuit Tester
Warranty:
  • This product carries a 1 year exchange warranty redeemable at any Canadian Tire store.
Online Ordering:

  • Pick Up is free at most stores (some stores require a minimum order value before tax)

  • Shipping fee is based on size and weight of products and distance from address to store

  • Same-Day Delivery costs $9.99 per order

  • Same-Day Delivery and Ship to Home are unavailable for tires and wheels

  • Online Ordering Information.

Returns:

  • Most products can be returned or exchanged at any Canadian Tire store within 90 days of purchase

  • Some products are non-refundable and non-exchangeable

  • Special order hard parts and specific application automotive parts must be returned to original store of purchase

  • The return info outlined above may not apply to the product you are currently viewing. For complete details and exceptions, please refer to our Return Policy.

Shop Related Products

Weekly Deals

Reviews

Rating Snapshot

Select a row below to filter reviews.
9 reviews with 5 stars.
3 reviews with 4 stars.
1 review with 3 stars.
0 reviews with 2 stars.
0 reviews with 1 star.

Overall Rating

4.6
10 out of 11 (91%) reviewers recommend this product

Review this product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Adding a review will require a valid email for verification

Filter Reviews

  • for school use
  • functional
  • product features
  • purchase
  • quality
  • satisfaction
1 to 5 of 13 Reviews.
1 – 5 of 13 Reviews

Works pretty good

2 years ago
Bought it to re wire a friend's trailer. Not like the old school single wire light bulb type I had years ago but once I figured out what I wanted it to do, it worked very well and I have no issues with it. I would give it a B +.
Helpful?

Easy to use!

2 years ago
[This review was collected as part of a promotion.] This was so easy to use! I was able to check voltage and ground on my old radio and it worked really well. I like it because you can plug it into your car cigarette lighter to work it as well. I love Innova products, they are extremely reliable.

Yes, I recommend this product.

Originally posted on Innova

test your car!

2 years ago
[This review was collected as part of a promotion.] so got these cause my wifes car had a swicth malfunction. test confirmed it and later got the parts to replace it. overall super easy to use. a few youtube vids and youll be handling it no time. not a tool guy but turning into a tool guy to avoid paying these outrageous mechanic prices. this was an easy one!

Yes, I recommend this product.

Originally posted on Innova

Great product

2 years ago
[This review was collected as part of a promotion.] Got this for my car and I couldn't be happier its made out of high-quality materials and built very well and super easy to use I highly recommend to those looking for a high quality smart test light and circuit tester

Yes, I recommend this product.

Originally posted on Innova

Confidence and comfort

2 years ago
[This review was collected as part of a promotion.] This Innova 3420 Smart Test Light provided the confidence I needed to safely check the voltage of our vehicle's electrical system. Love the design comfort of the body of the tester. Easily fits into my hand when using. The bright red/green lights are easily and prominently visible to avoid any mishap. Nice and compact tool for my garage.

Yes, I recommend this product.

Originally posted on Innova

1 – 5 of 13 Reviews

Questions

1 - 3 of 3 Questions

Q: In the answer to Tom's question... does "proper connection to source" mean that the positive & negative to the tester are good?

9 years ago
1 Answer
  • A: Proper connection to source does mean power(+) and ground(-) is good.
    9 years ago
    Helpful?

Q: How does test light work? This light has 3 lights. Red White and Green What do they mean? One minute the red come son and the next the white. It does not tell me what I want to know and there were no instructions withe this item. Can you explain it to me please? Thanks Tom

15 years ago
1 Answer
  • A: Designed to safely check voltage and/or ground on several electronic systems, including wiring, fuses, battery, cabling, sensors, switches, and more. Features ergonomic grip design for comfort and safety. Connects using a cigarette lighter / power plug and detachable twin alligator clamps. 6-foot leads provides long reach connection. Unique transparent handle shows bright LEDs to identify connections: White = Proper Connection to Source - Red = Voltage Present - Green = Ground Present
    Anonymous15 years ago
    Helpful?

Q: La lumière blanche sert à quoi? je sais que lorsque la lumière rouge s'allume ça t'indiques si tu pique le négatif et le vert le positif (principe des lampes à DEL) mais le del blanc lui t'indique quoi ?

16 years ago
Translate with Google
1 Answer
  • A: Blanc= bonne connection à la source Rouge= voltage présent Vert= mettre à la terre présent
    13 years ago
    Helpful?
    Translate with Google