The OP Series represents the latest innovation in metering optical probes. It is the first and only series to meet the highest standards, including water and dust resistance, and explosion-proof protection. OP-BTS, the flagship model, is also the world's first and only standalone optical probe, capable of communicating with meters without a computer or phone.

Launched in 2004, the TP Series has been the most successful and best-selling metering optical probe worldwide. From TP-232 to TP-BT, the TP Series has set the global standard for communication optical probes. TP-BT, the world's first Bluetooth optical probe, is widely adopted by meter manufacturers for their metering solutions.

OP calibration probes convert light signals into digital signals. They are designed for meter testing and calibration scenarios, helping improve consistency and efficiency in both lab and production workflows.

MS Series devices provide fast and safe meter power-up support, enabling efficient setup and verification in production and maintenance environments.