Product: Klein Tools Non-Contact Voltage Tester (NCVT-1). Issue: When the on/off button is depressed and not released, the tool will falsely indicate that it is ready to detect voltage, however it will not detect the presence of voltage until the on/off button is released, posing an electric shock hazard to the consumer if they believe there is no voltage present from an electric source. What to do: Consumers should immediately stop using the recalled product and contact Klein Tools for a replacement. Affected products What you should do Joint recall with Health Canada, the United States Consumer Product Safety Commission (US CPSC) and Klein Tools, Inc.