In on‑site meter data collection, traditional wired optical probes are reliable, but cable constraints often create inconvenience. In cramped distribution rooms, in front of high‑mounted meter boxes, or when recording multiple meters at once, cable length limits and plugging/unplugging significantly reduce efficiency. Tespro TP‑BT‑PRO Bluetooth optical probe was designed to solve these problems. It uses Bluetooth 5.0 BLE low‑energy wireless communication, allowing technicians to free themselves from cables and read meters from a comfortable distance and position. At the same time, it retains USB 3.0, Type‑C, and USB‑OTG wired connection options, giving users the flexibility to choose the best communication method for each site.
One of the most impressive features of the TP‑BT‑PRO is its exceptional battery life. It contains a 3.7V / 800mAh rechargeable lithium battery with a Type‑C port supporting PD fast charging, reaching full charge from empty in about 30 minutes. When fully charged, it provides approximately 60 hours of continuous operation and a standby time of about one year. Based on real‑world usage estimates, a single charge supports reading data from up to 6,000 meters. For operations teams performing large‑scale inspections, this means fewer interruptions for recharging, allowing full days or even multiple consecutive days of inspection work to be completed smoothly.
How many meters can the TP‑BT‑PRO Bluetooth optical probe read on a single charge, and how long does the battery last?
The TP‑BT‑PRO contains an 800mAh rechargeable battery. When fully charged, it provides approximately 60 hours of continuous operation and a standby time of about one year. Based on real‑world estimates, a single charge supports reading data from up to 6,000 meters, which is sufficient for large‑scale inspection needs. It also supports Type‑C PD fast charging, reaching full charge in about 30 minutes, ready for the next round of work.
In terms of protocol compatibility, the TP‑BT‑PRO inherits the broad compatibility of the Tespro optical probe product line. It supports major communication protocols including IEC 62056‑21, ANSI C12.18, ANSI‑Type2, and DL/T‑645, making it compatible with different brands, types, and protocols of meters. Transparent communication modes include IEC 62056‑21 Mode C, Mode E, and user‑defined modes, as well as ANSI C12.18 and its 2006 Type‑2 version. The maximum frame length (MTU) reaches 2048 bytes, and the maximum data rate is 115,200 bps, ensuring high‑speed and stable data reading. The product also supports firmware and configuration updates via USB or Bluetooth, facilitating long‑term maintenance and feature upgrades.
For harsh environment performance, the TP‑BT‑PRO excels. It features IP65 dustproof and waterproof protection, with a housing made of high‑strength, trustworthy ABS+PC material and an external silicone cover that resists drops and daily wear. A safety strap holder is included to prevent accidental falls. The operating temperature ranges from minus 40 degrees Celsius to plus 70 degrees Celsius, working reliably whether in the freezing outdoor cold of northern winters or the sweltering heat of southern distribution rooms. The optical sensor uses infrared light at approximately 900 nm wavelength, and strong magnetic adhesion is available in N40 or N52 grades, ensuring the probe holds firmly to the meter's infrared communication port. The probe measures 31.5mm wide and 33.5mm high, weighs only 65 grams, and is lightweight and portable. For technical teams that frequently perform meter data collection outdoors, in distribution rooms, or in industrial environments, the wireless design, long battery life, and rugged quality of TP‑BT‑PRO Bluetooth optical probe significantly improve on‑site convenience and efficiency.
