Announcing RD-20, RD-21, and RD-23 End of Sale

Effective February 6, 2023, the RADIAN RD-20, RD-21, and RD-23 Dytronic Single-Phase Portable Standards are no longer available for sale.

REPLACEMENTS: The RADIAN RX-10, RX-11, and RX-15 Xytronic Single-Phase Reference Standards are direct replacements for most RD-20, RD-21, and RD-23 applications.

To confirm the right replacement for your application, contact Radian Research.