4F, Building3, FuBiLun DingFeng High-Tech Industrial Park, SongGang Avenue West, SongGang Street Office Bao'an,ShenZhen, China. 518105


433.92Mhz wireless smoke alarm

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433.92Mhz wireless smoke alarm–Model RC421-WL

This 433.92Mhz wireless smoke alarm is a battery-operated smoke alarm with photoelectric sensor; Wireless technology uses radio frequency to transmit and receive messages. Alert and warn people stay far away from danger field when it detected smoke; The alarm adopts the special structure design, has the dustproof, mothproof and anti outside light interference feature etc.;

Fire Smoke Detector Alarm, general purpose ideal for all areas : house, shop, hotel, restaurant, office building, school, bank, library, computer house and storehouse etc.

433.92Mhz wireless smoke alarm Features &pictures

 Power Supply 9V DC Battery
Sensor Photoelectric Sensor
Radio Frequency 433.92 MHz
Range 50 meters (min) in free space
Maximum Link Quantities 20PCS
Two-Tone LED Red LED Indicates Alarm Red LED Indicates Alarm
Indicates Green LED Indicates Radio Signal is Received
Humidity Range: 15% to 95% RH
Operating Temperature: -10 to +50 °C
Test Button Stimulates Smoke Use to Check Performance
Standby Current: 40uA
Alarm Current:  30mA
Horn Level 85 Decibels at 10 feet
Battery life 1 year alkaline battery OR 10 year Lithium battery
Size 110mmX25mm
 Certificates CE, EN14604 Approved

433.92Mhz wireless smoke alarm RC412-WL detail pictures

433.92Mhz wireless smoke alarm RC421-WL

433.92Mhz wireless smoke alarm Packaging and shipping

package and shipment_RC421-WL


*For mass order delivery, can be optional with terms of Exwork, FOB, CNF, CIF by air or by sea based on the buyer forwarder or ours.

*For sample,by express shipping(DHL ,FEDEX ,TNT ,UPS ,EMS,Special Line ,etc.)

*A Tracking Number will be sent to you via e-mail after your order has been shipped and we will keep in touch with you.

433.92Mhz wireless smoke alarm RC421-WL certificate

CE and EN14604 certificate for the 433.92Mhz wireless smoke alarm

CE wireless smoke alarm

433.92Mhz wireless smoke alarm Our service

1. In the case of non-artificial damage, All products purchased in our company are guaranteed to keep one year warranty.

2. If the 433.92Mhz wireless smoke alarm quality problems happen in guarantee period, our company will maintain for free.

3. Additionally, our company provides technical support and fittings for life.

4. If you are caught in some problems when using our 433.92Mhz wireless smoke alarm, welcome to contact your relevant salesman at any time, we promise to make positive response within 12 hours.

5. After expiry of a guarantee period, we provide to repair for life, and our clients just need to pay parts original cost

Terms & Conditions

Trade term EXW, FOB, CIF,CNF
Minimum order 500pcs
Payment terms T/T,  Western Union,  L/C
Lead time 1-3 days for sample order ,10-15 days for bulk order
Delivery method By sea, by air, by express (DHL , UPS, FedEx, EMS, TNT)
Package Retail gift box
OEM LOGO, Package(accdoding to your request),based on the1,000pcs


433.92Mhz wireless smoke alarm FQA

Q: 1. Can I have a sample order of 433.92Mhz wireless smoke alarm?

A: Yes, we welcome sample order to test and quality check .

Q: 2. What is the lead time?

A:Sample needs 2-3 days, production time needs 10-15 days for order 2000pcs.

Q: 3. How to proceed the order if I have logo to print?

A: Firstly, we will prepare artwork for visual confirmation, and next we will produce a real sample for your second confirmation. if mockup is ok, finally we will go to mass production.

Q: 4. Do you offer guarantee for the 433.92Mhz wireless smoke alarm?  

A: Yes, we offer one year guarantee for the products.

Q5: Does this 433.92Mhz wireless smoke alarm can equip with 9V 10 year Lithium battery?

A: Yes, it’s aviliable, and the unit price will be higher than normal 9V alkaline battery.

Other stand-alone battery Charger


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Product Name:433.92Mhz wireless smoke alarm

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