In field meter reading and maintenance work, traditional optical probes rely on USB cables to connect to mobile phones or PDAs. Issues such as limited cable length, mismatched connectors, and frequent plugging/unplugging have long troubled field staff. Tespro TP-BT-Pro Bluetooth optical probe is designed to solve these pain points.
TP-BT-Pro supports Bluetooth 5.0 BLE wireless communication, connecting stably to mobile phones, PDAs, and PCs with sufficient range for field meter reading. More importantly, it is designed as a “2-in-1” device: it works as a Bluetooth optical probe wirelessly, or it can switch to a conventional USB optical probe by adding a data cable. This means users carry just one probe for both wired and wireless scenarios.
Regarding protocol compatibility, the TP-BT-Pro excels. It fully supports IEC 62056-21 (Mode C and Mode E), ANSI C12.18 / ANSI Type2, and the DL/T-645 protocol widely used in China’s power industry. Transparent communication modes (IEC 62056-21 Mode C/E and user mode) are supported, with a maximum frame length (MTU) of 2048 bytes. Whether reading meter identification, real-time readings, or load profile data, transmission is stable.
What makes the TP-BT-Pro different from ordinary Bluetooth optical probes?
The TP-BT-Pro is a 2-in-1 design. It works wirelessly via Bluetooth and can also become a standard USB optical probe by adding a data cable—one device for both connection methods.
Is it compatible with my existing meter reading app?
The TP-BT-Pro supports IEC 62056-21 Mode C/E transparent communication. Most mainstream meter reading apps can communicate directly via Bluetooth serial without modification. If special configuration is needed, firmware updates are available via USB or Bluetooth.
Tespro TP-BT-Pro Bluetooth optical probe makes field meter reading more flexible and efficient. With its 2-in-1 design, comprehensive protocol compatibility, and stable Bluetooth communication, it delivers reliable wireless meter reading for utility companies and meter service engineers. Visit the Tespro website for more product details or contact sales for a trial unit.
