Voluntary safety recall. Image supplied. Black Diamond Equipment®, a global innovator in climbing, skiing, and mountain sports equipment, in cooperation with the U.S. Consumer Product Safety Commission (CPSC)and Health Canada, is voluntarily recalling its PIEPS and Black Diamond branded avalanche transceivers. Affected models include the thePIEPS Pro BT, Powder BT, DSP Sport, DSP Pro, DSP Pro Ice, Micro Button BT, Micro BT Sensor and Micro BT Race avalanche transceivers and the Black Diamond branded Recon BT and Guide BT avalanche transceivers. Black Diamond is the North American distributor for PIEPS. This voluntary product recall follows a previous safety Check Notice when Black Diamond first identified an issue in April.