In today’s smart home era, water heaters are no longer just simple heating devices. Many modern models now come with wireless connectivity features such as Wi-Fi, Bluetooth, Zigbee, or IoT integration. Because these features operate using radio frequencies, water heaters with wireless modules are classified as telecommunication devices in Indonesia. As a result, they are legally required to obtain SDPPI/DJID Certification before being imported, marketed, or sold officially in Indonesia.