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- 2012-02-20
Featured 天浪(香港) manuals

Tianlang TR1898 Music Doorbell Manual
The TR1898 music doorbell offers 16 selectable tones and two operation modes: K1 for single‑play and K2 for simultaneous play. It is designed for doorbell systems with low power consumption and high stability.
The manual lists the electrical characteristics, including a typical operating voltage of 3.0 V, operating current of 0.28 A, no‑load current of 1.0 A, output current of 2.0 mA, and an oscillator frequency of 1.0 MHz. An application diagram shows how the device connects within a doorbell system. This manual is written in Chinese.
Covers: Features · Electrical Characteristics · Doorbell Tones · Application Diagram · Application
Latest 天浪(香港) manuals
Tianlang TR1898 Music Doorbell Manual
User Manual 2 pages · 334 KB · ZHThe Tianlang TR1898 music doorbell manual provides features, electrical specifications, and an application diagram for installation and use.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in 天浪(香港) manuals
What is the typical operating voltage for the TR1898?
The typical operating voltage is 3.0 V.
