Home > Products > Wireless Industry > Professional Terminals


EP821 is a private network flagship large-screen smart terminal developed wholly by TD-Tech, with a professional configuration and outstanding features that will bring a totally new product and technological innovation to customers in the private network industry. EP821 adopts a public-private network convergence design for supporting abundant frequency bands for public and private networks, which can be widely used in public security, energy, transportation, and other industries to perform professional radio trunking, multimedia dispatching, and broadband data functions.

Functional Features

Its exquisite design is combined with powerful configuration Ingeniously engineered with a lightweight design, classy appearance and state-of-the-art feel. It adopts a 5.0-inch 1080P full HD touch screen, which is resistant to scratching, impacts, fingerprints and grease, and supports the glove and wet finger modes to guaranteed 24 hours a day use. It utilizes an 8MP front-camera and 13MP rear-camera for clear recording anywhere and anytime. Physical buttons for PTT, emergency calls and for LED lighting of multiple function keys make broadband trunking service convenient.


Open platform is compatible with a variety of applications. It is designed for an Android 8.0 smart operating system to support numerous industrial applications, appropriate for public security, transportation and energy industry. Compatible with a variety of professional accessories to full coordinate the industry application.


Safe and reliable for excellent performance. Equipped with a Kirin 8-core CPU and LTE cluster module (developed independently by TD-Tech) to ensure security and efficiency. Perfect blend of advanced industry multimedia dispatching algorithm, cluster voice and broadband data. One terminal can perform point calls, group calls, SMS and MMS, HD video transmission (up to 1080P 25fps), as well as function as a mobile office and other related tasks.


A 2.5W large volume speaker, dual MIC noise reduction and howling suppression algorithm are suited to providing professional and clear voice services even in highly noisy environment. Supports duplex authentication, air interface encryption, remote access, and end-to-end encryption. Use a standard configuration of 2 packs of detachable batteries with a high capacity of 4000 mAh supports a fast charge of 9V2A and has a standby time of more than 60 hours. Waterproof and dustproof grade satisfies the IP68, and a 1.2m fall-proof design in accordance with the MIL-STD-810G.


Private network convergence for multiple networks collaboration. It is designed with dual SIM card to support the 1.4G, 1.8G and other private network frequency bands, as well as public network GSM, UMTS and LTE formats and frequency bands, ensuring the public-private network convergence and multi-networks collaboration. Compatible with direct digital/ analog mode operation to facilitate communication anytime and anywhere. Support 2.4G and 5 G dual band WIFI, bluetooth 4.1 EDR, NFC, high-speed and stable network connections. Support tandem GPS, BeiDou and GLONASS positioning.


EP821-D45 is a wireless communication terminal specially developed for rail service use. Its dual mode support of LTE-R/GSM-R allows it to provide services including transmission of train control information, and emergency and group call communication, amply fulfilling rail service communication needs.