High-precision, IP-rated transformers engineered for humidity and tropical resilience.
Costa Rica stands as a global beacon for renewable energy, with over 99% of its electricity generated from green sources like hydropower, wind, and geothermal energy. As a premier Waterproof Split Core Current Transformer Manufacturer and Supplier, we understand that the country's unique environmental and industrial landscape requires more than just standard electrical components. From the humid coastal regions of Limón to the high-tech medical device corridors in Alajuela and Heredia, our transformers are designed to perform under extreme tropical conditions.
Costa Rica's climate is characterized by high humidity and heavy seasonal rainfall. In industrial outdoor applications, standard current transformers often fail due to moisture ingress, leading to short circuits or inaccurate data. Our IP67 and IP68 rated split-core transformers utilize advanced resin-filling techniques and silicon rubber seals to ensure complete protection against water and dust. This is critical for the "Instituto Costarricense de Electricidad (ICE)" standards and private energy developers managing wind farms in Guanacaste.
The "Zona Franca" (Free Trade Zones) in San José and Alajuela house some of the world's leading medical device manufacturers. These facilities require ultra-precise power monitoring to ensure the integrity of cleanrooms and sensitive production lines. Our high-accuracy split-core CTs allow for non-invasive installation—meaning facilities can upgrade their energy monitoring systems without a minute of downtime, ensuring continuous operation for Costa Rica's vital export industry.
Traditional industries in Costa Rica, such as coffee "beneficios" and banana processing plants, are increasingly adopting IoT and smart metering to optimize energy costs. Our Waterproof Split Core CTs are the perfect retrofit solution for these often rugged, wash-down environments where machinery is frequently cleaned with high-pressure water, requiring sensors that can withstand thermal shock and moisture.
Fujian Smrtr Technology Co., Ltd. Zentar®, a leading manufacturer of magnetic components for electrical safety and power measurement, was founded in 1993. With nearly three decades of experience, we have established ourselves as an authoritative voice in the CT manufacturing sector.
Xiamen Smrtr Technology specializes in magnetic ring cores and current transformers for electrical safety and power metering. We are one of the leading suppliers for protection against electric shock and electrical faults. Our split core current transformers and Rogowski coils are widely used for energy efficiency monitoring and automation applications, including sub-metering cost allocation, dynamic energy consumption, and peak load analysis in modern Costa Rican smart cities.
Our rigorous 11-step process ensures every transformer shipped to Costa Rica meets international safety standards.











The transition toward Decarbonization by 2050 in Costa Rica is driving demand for intelligent energy monitoring. We are seeing a massive shift towards solar PV adoption in the Guanacaste region, where our waterproof current transformers are used to monitor inverter performance and solar yield. Furthermore, the rise of Electric Vehicle (EV) charging infrastructure across the national "Ruta Eléctrica" requires robust CTs that can handle variable loads and harsh outdoor station conditions.
Our commitment to sustainability mirrors Costa Rica’s "Pura Vida" philosophy. By providing high-efficiency magnetic components, we help local businesses reduce energy waste, lower their carbon footprint, and maintain the highest safety standards for their personnel.
Reliable components for every industrial application across Costa Rica.