Inconsistent global meter standards have always been a headache for cross‑border AMI procurement. IEC standards are widely used in Europe, Asia and Africa; ANSI standards dominate North America and parts of Latin America. Even within IEC, different manufacturers (Landis+Gyr, Itron, Elster, etc.) have subtle variations in infrared communication parameters. In May 2026, Tespro optical probes received bulk orders from the UK, US, Mexico, Poland, Indonesia, Slovakia and more within just two weeks – proving their “global adaptability”.
According to the sales order system, mid‑May saw a wave of overseas purchases of Tespro optical probes. PT VIUS GIANTARA in Indonesia placed a bulk order for USB-IEC series probes for local IEC standard meter data acquisition. Schrack, a well‑known power technology company in Slovakia, ordered several hundred BT-IEC optical probes together with PRO modules – one of the largest single optical probe orders in Eastern Europe in recent years. POLITECH in Poland followed with a substantial order for USB-IEC probes.
EDF Energy UK placed another order, purchasing MTS multi‑functional test heads and overseas modules for nationwide meter maintenance and parameter setting. US customer HSC, after completing initial sample testing, quickly expanded its order to several times the original size – a strong sign of repurchase confidence. The Mexican market also performed strongly: LECT ordered BT-PRO Bluetooth optical probes requiring support for both forward IEC and US‑style fast‑charge ANSI interfaces, while David purchased USB-ANSI-U and TYPE-C-ANSI-U probes. In addition, several trial orders from the Middle East, Southeast Asia and South America are in progress.
These orders cover three typical meter interface types:
First, pure IEC standard – applicable to Indonesia, Poland, Slovakia, the UK and others. Using IEC 62056-21 infrared communication, Tespro USB-IEC and BT-IEC plug directly into the IEC probe socket, supporting Mode C and Mode D high‑speed communication up to 19200 baud.
Second, pure ANSI standard – applicable to Mexico and some US scenarios. Using the US ANSI Type 2 interface, Tespro USB-ANSI-U features a dedicated probe and fast‑charge compatible circuit, solving the power supply current limitation of ANSI meters.
Third, mixed environment – as seen in the Mexican LECT order, where both IEC and ANSI meters coexist. Tespro BT-PRO handles both by simply changing the probe cap; the host automatically recognises and switches communication parameters.
Notably, Schrack Slovakia ordered several hundred BT-IEC units at once, indicating a large‑scale AMI modernisation project underway. Tespro provides “custom protocol firmware” – optimised for private infrared parameters of different meter brands – ensuring plug‑and‑play without on‑site tuning. US HSC verified in initial tests that Tespro’s communication range is more than 30% longer than its previous brand, with no frame loss under strong light, leading to the rapid order expansion.
The May global order map clearly shows that Tespro optical probes – with their superior compatibility, industrial reliability and rapid customisation ability – are becoming the common choice of AMI engineers worldwide.
Is the meter interface in Indonesia the same as in Europe? How does Tespro ensure compatibility?
Indonesia widely uses IEC 62056-21, the same as most European countries. However, the hot, humid and dusty field conditions demand better sealing. The Tespro PE16 mushroom head with LED uses fully potted construction with IP54 protection, and has run stably for over 12 months in Jakarta and Surabaya. The Indonesian customer VIUS placed a bulk order precisely based on positive results from an earlier pilot.
Did Schrack Slovakia order several hundred BT-IEC units because local meters have special protocols?
Yes. Some older Slovak meters use non‑standard infrared carrier frequencies. Tespro provided custom firmware for Schrack’s meters, adjusting infrared timing and adding automatic baud rate adaptation. This batch achieved a 100% first‑read success rate in field tests. Users can also update the protocol library themselves via USB connection using the Tespro configuration tool.
Mexico has both IEC and ANSI meters. Do I need to buy two separate optical probes?
No. The Tespro BT-PRO is a Bluetooth optical probe specifically designed for mixed environments. It comes with two sets of probes: one IEC mushroom head, one ANSI flat head. Field engineers simply change the probe according to the meter interface, and the host automatically recognises and switches communication parameters. Mexican LECT has adopted this solution, significantly reducing the number of tools they carry.
Whether your project is in London, Warsaw, Jakarta or Mexico City, and whether the site uses IEC, ANSI or mixed meters, Tespro delivers a plug‑and‑play optical probe solution. The May global order map has already proven: Tespro optical probes are a true “world language”. Contact us today to receive a meter compatibility report for your country and a free sample test opportunity.
