Qiaohua QH-858AK User Manual

1
Accessories List:
● 1 x Receiver ● 1 x Transmitter
● 1 x User Manual ● 1 x Double-sided adhesive
● 1 x 3 volts CR2032 battery for transmitter
Technical Specification:
● Frequency: 433.92MHz+100KHz
● Modulation Type: ASK
● Ring Volume:＞85dB(within 0.5m)
● Channel space: 1 million sets of auto-learning codes
● Receiver bandwidth: ±90KHz
● Reception Sensitivity:＞-105dBm
● Transmitter Power:＜10mW
● Power consumption(Receiver): standby:＜0.3W
● Power consumption(Transmitter): standby:＜5uA working:＜10mA
● Power Supply(Receiver): AC110-240V
● Power Supply(Transmitter): DC 3V (1x CR2032)
● Operating Range:＞150m (in the open air)
Names for Parts:
Instruction Manual
Auto-learning Code Wireless Door Chime
LED Indicator
Push Button
Nameplate Cover
Volume Button
Melody Selector
Sound-and-Flash
Switch Button
Auto-learning
Code button
Receiver Transmitter
Model No.: QH-858AK
VOLMODE

Qiaohua QH-858AK Specifications

General

Brand	Qiaohua
Model	QH-858AK
Category	Accessories
Language	English

Summary

Product Components and Specifications

Accessories List

Lists all included items for the wireless door chime system, such as receiver, transmitter, manual, and battery.

Technical Specifications

Details the operating parameters including frequency, modulation type, ring volume, and reception sensitivity.

Names for Parts

Identifies and illustrates the main components of the receiver and transmitter units.

Installation and Safety

Battery Installation (Transmitter)

Instructions for opening the transmitter and inserting the CR2032 battery correctly.

Important Note on Battery Usage

Provides crucial safety advice regarding battery removal, handling, and recycling.

Transmitter Installation

Guide on mounting the transmitter unit on a wall or door using the provided double-sided adhesive tape.

Receiver Installation

Instructions for plugging the receiver unit into a standard AC 110-240V power socket.

Functions and Operation

Auto-learning Code Pairing

Steps to pair the transmitter with the receiver using the auto-learning code function.

Melody Selection and Reset

How to select different melodies, adjust volume, and reset all saved information.

Sound and Flash Switch

Configuration options for receiver operation: sound only, LED flash only, or both.

Regulatory Information

Federal Communication Commission (FCC) Interference Statement

Details FCC compliance, potential interference, and measures to correct it.

FCC Caution and User Authority

Explains device compliance conditions and warns against unauthorized modifications.

Troubleshooting Interference

Guidance on resetting the auto-learning code if the receiver sounds without reason.