Independent reference · Facts sourced from CPSC, ENERGY STAR and DOE Record verified Aug 18, 2026
Active recall — stop using this product now.
Remedy: free repair · About 4,200 units
Recall No. 18-746 Published June 6, 2018

Vernier Circuit Board 2

There are two switches on the VCB2 that can get stuck between positions causing the switches to short out and overheat. If the switches overheat, the metal case of the switch can become hot, posing a burn hazard. Manufactured by Charles Assembly and sold at Online directly to customers by Vernier Software & Technology, by phone, catalog and dealers from August 2015 – April 2018 for about $130.

Vernier Circuit Board 2
What you are looking at

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Check the label first

Compare every letter, number, space and suffix. A similar-looking product with a different suffix may not be part of this recall.

Affected model numbers

Why it was recalled

There are two switches on the VCB2 that can get stuck between positions causing the switches to short out and overheat. If the switches overheat, the metal case of the switch can become hot, posing a burn hazard.

10
Incident reports to the firm
0
Injuries reported
0
SaferProducts.gov reports

The firm has received 10 reports of circuit board switches overheating. No injuries have been reported.

The official remedy

Remedy type: repair
01
What to do

Consumers should immediately stop using the recalled circuit boards and return them to the firm for a free repair. Instructions for returning the units are available on the firm's website. Vernier is contacting known customers directly.

Product and sales details

ManufacturerCharles Assembly, of Aloha, Ore.
UnitsAbout 4,200
Made inUnited States
Sold atOnline directly to customers by Vernier Software & Technology, by phone, catalog and dealers
Sales periodAugust 2015 – April 2018
PriceAbout $130

How to reach the firm

Phone
888-837-6437
7 a.m. to 5 p.m. PT Monday through Thursday
Email

Verify phone numbers, hours and web addresses on the current CPSC notice before contacting the firm.