User's Manual

ManualsBrandsSHENZHEN QIAOHUA INDUSTRIES ManualsElectronicsWireless Doorbell Transmitter

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

Summary of content (4 pages)

PAGE 1
Instruction Manual Auto-learning Code Wireless Door Chime Model No.: QH-858AK Accessories List: ● 1 x Receiver ● 1 x User Manual ● 1 x 3 volts CR2032 battery for transmitter ● 1 x Transmitter ● 1 x Double-sided adhesive Technical Specification: ● Frequency: 433.92MHz+100KHz ● Modulation Type: ASK ● Ring Volume:＞85dB(within 0.
PAGE 2
Battery Installation (Transmitter): ● Open the Transmitter by pushing in the interface located at the bottom with a flat screw driver. ● Place the CR2032 battery (included). CR2032 3V Lithium Battery Important Note: ● If you do not plan to use the device for a long time, such as at a vacation, please remove the battery from Transmitter, then put them in a safe place. ● Improperly using a battery may cause it to leak and damage nearby items, and can create the risk of fire and personal injury.
PAGE 3
Import note: Please test the operating rang between the Receiver and Transmitter. The operating range is 150M (in the open air) , but this distance may be less due to walls or obstructions such as Metal or UVPC door frames can also reduce the operating range. Functions Instruction 1. Plug the Receiver into any socket of AC 110~240V power，then open the transmitter and place the battery as shown in the diagram. 2.
PAGE 4
Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.