The price of a Transformer Insulation Tester in Bangladesh varies depending on its voltage range, measurement accuracy, and advanced features. Basic models only measure insulation resistance, while advanced testers can perform additional diagnostics such as PI (Polarization Index), DAR (Dielectric Absorption Ratio), and multi-voltage testing. Brand reputation also plays a big role, as international brands offer better durability and precision. Features like digital display, data storage, automatic testing, and PC connectivity also increase cost. Industrial-grade testers designed for field and substation use are more expensive than simple handheld devices. Import cost, availability, and after-sales service also influence pricing in the local market.