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Photoelectric sensor smoke detector RCS420

  • Details

Photoelectric sensor smoke detector RCS420

The Photoelectric sensor smoke detector RCS420 is a full size, photoelectric sensor, battery operated smoke alarm designed to protect you and your family from the dangers of smoke and fire. The RCS420 is powered by a 9V battery, providing continuous protection even during power outages. This unit includes a flashing red LED to indicate the alarm is receiving power.

smoke detector photoelectric sensor factory

Product Details

  • Easy Installation – No wiring required.
  • Quality Design – SMT Technology
  • Flashing LED – Indicates alarm is receiving power.
  • Test Button – Verifies battery and alarm operation.
  • Low Battery Indicator – Chirps when battery needs replacement.

Power 9v battery
Alarm Model Sound&flash alarm
Sensor Photoelectric Sensor
Operating Current(normal) 10uA
Alarm Style In comply with UL217 & BS5446:Part 1 2000
Operating Current(alarm working) 20-50mA
Temperature -10c+50c
Alarm decibel ≥85db/1m
Humidity 5%-95%
Dimension 110mm*25mm


Product Pictures

photoelectric sensor smoke detector RCS420 pictures


Packaging & Shipping

packaging and shipping


*For Photoelectric sensor smoke detector 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.

Certificate: CE, EN41604

CE and EN14604 certificate

Our Service

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

2. If the photoelectric sensor smoke detector 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 photoelectric sensor smoke detector, 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

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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



Q: 1. Can I have a sample order of  this photoelectric sensor smoke detector?

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 photoelectric sensor smoke detector?

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


Q: 5. How do you ship the goods and how long does it take arrive?

A: For samples, We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive.For bulk order, you can choose sea or airline service by your needs.

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Product Name:Photoelectric sensor smoke detector RCS420

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