Gold Member Since 2010
Audited Supplier
Ningbo Sentek Electronics Co., Ltd.

Smoke Alarm, Smoke Tester, Smoke Sensor manufacturer / supplier in China, offering Photoelectric Type Smoke Detector Alarm SD388, Tamper Switch Alarm, UL Recessed Mounted Magnetic Contact Switch and so on.

(/ )

Supplier Homepage Product fire detectors conventional Photoelectric Type Smoke Detector Alarm SD388

Photoelectric Type Smoke Detector Alarm SD388

FOB Price: US $5 / Piece
Min. Order: 500 Pieces
Min. Order FOB Price
500 Pieces US $5/ Piece
Get Latest Price
Production Capacity: 100000/Month
Transport Package: 100PCS/Carton
Payment Terms: T/T

Request a custom order and have something just for you!

Send Customized Request
Basic Info
  • Model NO.: SD388-4
  • Signal Transmission: Wired Alarm
  • Application: Indoor
  • Color: White
  • Dimensions: 102mm(Dia.)*43mm(Ht) with Base
  • Ceiling Spacing: 50 Foot Rating for Heat Sensor
  • Trademark: Sentek
  • HS Code: 8531901000
  • Type: Smoke Alarm
  • Certification: CE, En
  • Usage: Smoke
  • Weight: 120g/Set with Base
  • Certificate: UL/En
  • Smoke Sensitivity: 0.98--2.40%/Ft Obscuration (UL) ; 0.08--0.14 dB/M
  • Origin: Ningbo China
Product Description

Product Description: 
Photoelectric Type Smoke Detector Alarm SD388

1 Advanced detection and discrimination algorithms
2 Easy installation and maintenance
3 Super sleek low-profi le housing design
4 Durable sensor head, no need for replacement
5 SMD circuit board design-satisfactory quality and reliability guaranteed
6 Integrated heat detector for SD 388-2H and SD 388-4H models
7 N/C (normal/close)-N/O (normal/open)selectable relay output
8 AR (Auto Reset) function for security systems (optional for 4 wire models)
9 Five-year limited warranty
10 Size: 102mm diameter with 43mm height only


Smoke Sensitivity:

0.98--2.40%/FT Obscuration (UL) ; 0.08--0.14 dB/m (EN)

Ceiling Spacing:

50 foot rating for heat sensor (55 degree)

Reset Voltage:

less than 1 volt

Reset Time:

less than 1 second

Alarm Indicator:

LED continuously emitting red light

Remote Output:

25 mA max., diode gate

Temperature Range:

-10°C to 50°C

Permissible Current:

80mA maximum


0 to 95% RH, no condensation or icing

Alarm Contact:

NO or NC Operation, Form A: 1.0A@30VDC/0.5A@125VAC


102mm (dia) x 43mm (ht) with base


120g/set with base

Packaging:100pcs/canton or packed according to customers'request
Shipping Details: 25days

Company Profile:

Our company Sentek Electronics Co.,Ltd is specializing in designing,developing and manufacturing fire and secturity detectors and magnetic contacts from 2001.Take quality as life of corporation ,our products are all designed and manufactured completetely according to the standard of EN,UL,KFI and so on .All our products are tested one by one in sensitivity and fuction features.So we enjoyed good reputation in the world!

Your visit or e-mail are welcomed !

Below is our main customers or cooperators:

Photoelectric Type Smoke Detector Alarm SD388


Send your message to this supplier
Mr. Tom Lin
To: Mr. Tom Lin

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now