After-sales support

Beyond Value, Serving Customers

After-sales support



Customer service hotline

We boast a professional, in-house R&D team and robust technical expertise, ensuring that our products are technologically advanced, functionally reliable, and secure. As a technology‑driven enterprise, we consistently integrate the principles of “innovation, quality, and service” into every stage of our operations—R&D, manufacturing, customer support, and management. Developing and producing network products with proprietary intellectual property and core technologies is our strategic goal, while delivering honest, comprehensive services remains our unwavering business mission.

Worry-Free After-Sales Support – 24/7 Hotline +86-10-62130080

Manual downloads

DNTS-8 Instruction Manual

Please contact the after-sales hotline.

+86-10-62130080 to obtain the extraction code

250.7KB

DNTS-7 User Manual (0227)

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+86-10-62130080 to obtain the extraction code

1.1MB

DNTS-6 Technical Manual

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+86-10-62130080 to obtain the extraction code

125.5KB

DNTS-2N Instruction Manual

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+86-10-62130080 to obtain the extraction code

122.7KB

DNTS-2B Instruction Manual

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+86-10-62130080 to obtain the extraction code

39.1KB

DNPTP-9 Configuration Manual (1)

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+86-10-62130080 to obtain the extraction code

777.6KB

DNHH-9 Instruction Manual (0227) (1)

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+86-10-62130080 to obtain the extraction code

607.2KB

DNTS-9S User Manual 0227

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+86-10-62130080 to obtain the extraction code

1.1MB

DNTS-9 User Manual (0227)

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+86-10-62130080 to obtain the extraction code

1.1MB

DNZD Series Digital Sub-Clock Instruction Manual (Chinese) V4

Please contact the after-sales hotline.

+86-10-62130080 to obtain the extraction code

358.1KB

DNTS-Manager User Manual V2.0

Please contact the after-sales hotline.

+86-10-62130080 to obtain the extraction code

934.7KB

Surveillance software downloads

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After-sales phone number:+86-10-60120080

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