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Wireless Online Smoke Alarm

KD-122LE

Power source: 2pcs AAA balttery

Quiescent current mode: ≤2uA

Alarm current: ≤120mA

Alarm decibel: 85dB/3m

Frequency: 868MHz

Transmission/Receiver distrance about 100m(open field)

Low battery signal

Push to test

Hush feature

Size:(diameter)85x39mm

EN 14604:2005/AC:2008

86-13245660006 >

86-13081966918 >

kingdunalarm@kingdun.com >

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// Detailed //

KD-122LE Smoke Alarm

User Manual

1. Brief introduction

KD-122LE Wireless Interconnectable Smoke Alarm is a portable, photoelectric smoke alarm with low power consumption. Internal precise analog circuit and digital circuit make the detection work more stable and reliable. It has interconnection function using radio frequency link, which means when one unit makes alarm, other interconnected units within the interlink range will alarm at the same time.

2. Product characteristics

Photoelectric smoke detection

Reliable performance and less nuisance alarms

Precise analog circuit and digital circuit

Low power consumption

Small size

Portable

Interlink range >100m (RF868MHz free field)

3. Appearance and dimensions

4. Installation

a. Hold the mounting plate against the selected installation position on the ceiling, and mark the center of two screw holes with a pencil. Drill holes through the pencil marks and use the enclosed screws and anchors to secure the mounting plate.

b. Install the batteries according to Figure 3, making sure the polarity matches the markings.

c. Insert the hooks of the mounting plate to the slots of the alarm. Rotate the alarm clockwise until it snaps into place.

d. You can move the alarm to a new location by rotating the alarm counter-clockwise, then removing the screws and repeating the instructions in 5.2a to 5.2c in the new location.

Replacing battery

When low battery warning is made (please refer to section 6. Function), please replace the batteries immediately.

Turn the alarm anticlockwise and remove it from the mounting plate. Take the batteries out.

Use battery type: LR03/AAA.

Install the new batteries according to 5.2b to 5.2c.

Whenever the batteries are replaced, test the operation of the alarm by pressing the TEST button. If beeps are made, it means the product works properly.

Recommended Locations for Smoke Alarms and Locations to Avoid

a. Recommended Locations for Smoke Alarms

Install at least one smoke alarm in every bedroom.

If you install the smoke alarm in a passageway whose width is less than 3m, install it in the middle and install one unit every 12m.

At least 1.5m from fluorescent lamp or neon lamp. (In case of electronic interference).

At least 3m from the bathroom.

At least 6m from the kitchen or stove.

At least 30cm from the lamps.

b. Locations to Avoid

In the garage. Products of combustion are present when you start your automobile.

Near fresh air vents, fans, air conditioner or other drafty areas.

In dusty areas. Dust particles may cause nuisance alarm or failure to alarm. The insect screen can only obstruct part of the insects or dust.

Areas where have metallic shield that will block RF signal.

In an area where the temperature may fall below 0℃ or rise above 40℃.

In humid areas. Bathroom. Kitchen.

5. Function

A. Wireless Interconnection

Supports up to 100 interconnected units (≥100m range in open space).

Interconnection process:

Secure units to mounting plates.

Select a host unit → Double press LEARN (LED turns green).

Other units: Press LEARN (LED turns red).

Press TEST on host → All connected units beep & flash green.

Exit setup (auto after 1 min or press LEARN to turn off indicators).

To cancel interconnection, press LEARN for 3 sec until rapid blinking.

B. Operating Modes

Mode	Description
Test Mode	Press TEST → Beeps (>86dB) & red LED flashes.
Standby Mode	Detects every 10s, LED flashes every 344s.
Silence Mode	Press TEST/HUSH during alarm → 9 min mute (unless smoke increases).
Low Battery Warning	Beeps every 43s until battery recovers.
Alarm History	Green LED flashes 3× every 43s (lasts 24h).
End-of-Life Warning	3 short beeps every 43s → Replace unit.

6. Maintenance

Test the smoke alarm every week by pressing the test button.

Clean the smoke alarm with dry cloth every week. Never use water, cleaners or solvents to clean since they may damage the unit. Prevent foreign body from entering the unit.

If the smoke alarm is not working properly, don’t disassemble the unit yourself. Please seek the service of the professionals.

When end-of-life warning is made, please don’t use the product any more. Replace it with a new one.

7. Points for Abandoned Products

The packing material is renewable, so please do your best to recycle it.

The batteries and waste electrical appliances that have been used can not be abandoned with normal household garbage.

Technical parameters

Technical parameters	Smoke detection
	Voltage	DC1.5V*2 AAA
	Low battery warning	2.2V
	Current	Alarm current		Quiescent current
		≤120mA		≤2uA
	Status display	Standby condition		LED (red) flashes once about every 344 seconds, no alarm sound
		Alarm condition or test		LED (red) flashes and continuous alarm is given.
		Silence mode		LED (red) flashes every 10 seconds, no alarm sound, automatically quit silence mode about 9 minutes later.
		Alarm memory		LED (green) flashes 3 times every 43 seconds, and stops 24 hours later. The first time you press TEST button after alarm is made, the detector will hint by special alarm mode.
		End of life		End-of-life warning will be made. The buzzer beeps 3 times every 43 seconds.
		Low battery warning		LED (red) flashes every 344 seconds, beeps about every 43 seconds.
	Alarm loudness	≥85dB/3m
	Wireless interconnection	Radio frequency	868MHz
		Interlink range	≥100m (free field)
		Interconnection indication	Red LED being steady on means the product needs to learn. Green LED being steady on means the product is ready to send identification code. Green LED flashing means interconnection is completed.
	Working temperature	-10℃~+50℃
	Ambient humidity	≤95%RH (no condensation)

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