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What is an infrared sensor

What is an infrared sensor Infrared sensing system is used for the infrared measurement system for the medium, according to the function can be divi...

The difference between the scope and application of UPS and EPS power

The difference between the scope and application of UPS and EPS power UPS working principle and classification UPS working principle is to use the...

How the Magnetic contact sensor works

How the Magnetic contact sensor works? Magnetic contacts are the most common sensing devices for sensing opening and closing of doors and windows. The...

Security in the GSM system

Security in the GSM system As a result of recent mainstream controversy involving David Beckham’s alleged text messages, some articles have been publ...

Active infrared and passive infrared alarm features, differences and application

Active infrared and passive infrared alarm features, differences and application Works for the infrared emission of infrared emission tube infrared...

What is RFID (radio frequency identification technology)

   What is RFID (radio frequency identification technology)   Radio Frequency Identification (RFID), is the 1980s developed a new automatic identi...

How to install the access control system?

     How to install the access control system? There are a number of responsibilities which come with the owning and operating of a business. Wit...

How to buy a home burglar alarm products

[Abstract] home burglar alarm product is the use of various types of peripheralfunctions detectors, space, environment and people's overall housing te...

Emergency resettable alarm button

Emergency resettable alarm button       Emergency resettable alarm button,it can be installed in the fire hydrant box as...

SMQT's Access Control Products Passed ISO Certification

SMQT's Access Control Products Passed ISO Certification On March 27th, 2018, SMQT passed the strict inspection, test and evaluation of the company...
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China Wireless 433mhz/315mhz coal gas natural gas and liquefied petroleum gas detector manufacturer

Wireless 433mhz/315mhz coal gas natural gas and liquefied petroleum gas detector

Wireless 433mhz/315mhz coal gas natural gas and liquefied petroleum gas detectorProduct Introduction       Specification               Operating volta... More
China Dual detect Outdoor sensor, Infrared detector,Microwave sensor pir manufacturer

Dual detect Outdoor sensor, Infrared detector,Microwave sensor pir

Dual detect Outdoor sensor, Infrared detector,Microwave sensor pir       Specification               Product name      Dual detect Outdoor sensor, Inf... More
China Quality 8 wired and 29 wireless addressable fire alarm control panel manufacturer

Quality 8 wired and 29 wireless addressable fire alarm control panel

Product Name: EB-851 Alarm Control Panel
Size: 256x236x69mm
Operating current: less than 50mA
Frequency received: 315 MHz (or 433 MHz)
Alarm area: 8 Wired, 16 Wired
Recording time: 10-20 seconds
Password: 2groups 6 numbers
Material: steel box and ABS button
Alarm mode: alarm center, telephone, alarm device
Operating voltage: AC 220V
Alarm current: less than 200mA
AC format; ADMCO4 + 2, CID
Alarm mode: phone, button
Phone number: 6 groups
Wired alarm input: None / NC More
China Infrared mini PIR Motion Sensor12v, wall detector manufacturer

Infrared mini PIR Motion Sensor12v, wall detector

Infrared mini PIR Motion Sensor12v, wall detector       Specification               Product name      Infrared mini PIR Motion Sensor12v, wall detecto... More
China 2017 High sensitive fire alarm wireless 433mhz/315mhz smoke alarm sensor/detector manufacturer

2017 High sensitive fire alarm wireless 433mhz/315mhz smoke alarm sensor/detector

2017 High sensitive fire alarm wireless 433mhz/315mhz smoke alarm sensor/detectorProduct Introduction       Product Name:      2017 High sensitive fir... More
China Factory price 12v wired LED indicator heat detector for home security system manufacturer

Factory price 12v wired LED indicator heat detector for home security system

Factory price 12v wired LED indicator heat detector for home security systemProduct Introduction Introduction Specification Product name F ... More
China Low prize USB to RS 485 converter for access control system manufacturer

Low prize USB to RS 485 converter for access control system

Specification
Model: EA-02
Dimension: 94×35×18(mm)
Serial feature: Interface compatible with EIA / TIA RS-232C, RS-485 standard
Electrical Interface: USB port, DB9 female connector, RS-485 side, DB9 male connector with terminal (five wire).
Way of working: Asynchronous half-duplex
Transmission medium: Ordinary line, twisted pair or shielded cable
Transmission rate: Up to 57.6kbps (close up to 230kbps rate) in the 1200m distance
Transmission distance: 5 m (USB end) 1200 m (RS-485 terminal)
Color: grey
Usage: Access control sysetm
Relative Humidity: 5%~95%
Environment temprature: -10 ℃~85 ℃
letter of agreement: Transparent
Net weight: 0.116kg More
China CE&RoHS 12V/24V/9-35V 4 wire conventional photoelectric smoke detector manufacturer

CE&RoHS 12V/24V/9-35V 4 wire conventional photoelectric smoke detector

CE&RoHS 12V/24V/9-35V 4 wire conventional photoelectric smoke detectorProduct Introduction       Product Name:      CE&RoHS 12V/24V/9-35V 4 wire conve... More
China Security Alarm System emergency push button with auto reset manufacturer

Security Alarm System emergency push button with auto reset

Product Name: Security Alarm System Emergency Push Button
Dimension: 76*17*17mm  
Contact output: NO/NC  
Rating Current:  3A@36V  
Reset:  key-reset  
Setting mode:  Wall mounted  
Net weight:  40g  
suitable for:  access control/ alarm system
Material:  fireproof ABS housing   More
China Outdoor Waterproof digital dual beams infrared detector manufacturer

Outdoor Waterproof digital dual beams infrared detector

Specification  
Model: ABT
Operating voltage: 13.8~24VDC 11~28VAC
Operating current: 40-65mA
Indication speed: 50~700m/sec
Anti-demolition output: NC
Environment temperature: -20℃~+50℃
Alarm output: NO/NC
Level adjustment: 180°±90°
Vertocal adjustment:  ±10°
Color: Black
Material: PC resin  More
China High quality key-reset mini size  emergency push button switch manufacturer

High quality key-reset mini size emergency push button switch

Product Name: Fire Alarm Control Panel Fireproof Panic Button
Dimension: 54*54*32mm
Contact output: NO/NC
Rating Current: 3A@36V
Reset: key-reset
Setting mode: Wall mounted
Net weight: 40g
suitable for: access control/ alarm system
Material: fireproof ABS housing More
China Wireless 3G/4g GSM+WIFI LED App control voice prompt Smart home alarm system kit EB-824 manufacturer

Wireless 3G/4g GSM+WIFI LED App control voice prompt Smart home alarm system kit EB-824

Model:EB-824
Power input:DC 5V (micro USB standard interface power supply)
Working current:<120mA
Standby current:<80uA
Alarm current:<500mA
Wireless frequency:433Mhz
Wireless coding:EV 1527
GSM bands:850/900/1800/1900mHA
Standby battery:3.7V/500mAh lithium-ion
Temperature range:0℃~55℃
Humidity range:<80%RH (no freezing)
Host size:185x128x14.7mm
Weight:0.7kg per kit
Carton size:1set/colored gift box, 470*320*234mm 10setscarton More