Calibration Optical Probe

TP-18 slim optical scanning probe is designed and manufactured by Tespro China. TP-18 is designed for simoutanous meter active and reactive accuracy testing. TP-18 can sense both light and infrared light pulses emitted by LED, then convert them into electric pulses. It is designed with slim dimension of 10mm and high optical sensitivity. TP-18 can adapt to various calibration equipment, including high-precision standard meters produced by EMH, meter production testing equipment from major meter manufacturers, and portable on-site testing equipment.It will become a indispensable and great helper for your calibration tasks.

A field service team for a regional utility faced recurring frustrations with energy data collection: many of the electricity, gas, and thermal meters in their service area lacked magnetic mounting points, making it difficult to secure standard probes. Technicians had to rely on makeshift fixes like tape or clamps, which were time-consuming to apply, unstable during use, and risked damaging meter surfaces—all while standard-sized probes struggled to reach recessed LED pulse emitters on compact models.​

Tespro’s TP-18 Slim Scanning Probe resolved these pain points with a purpose-built design for non-magnetic meters. At just 10mm wide, its ultra-slim profile slides easily into tight recesses around LED panels, ensuring unobstructed pulse detection. The included TP-GS2 supporting fixture is the key to hassle-free mounting: it clamps securely to any meter (plastic, metal, or composite) without magnets, providing stable positioning in seconds—no tools, tape, or permanent modifications required.​

With the TP-18, the team transformed their data collection workflow. Secure, tool-free mounting eliminated setup delays and instability, while the slim design ensured reliable signal capture even on compact, recessed meters. For non-magnetic energy assets, the TP-18 delivers the ultimate in convenience—making every on-site collection task faster, simpler, and more dependable.