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 About us

 

Shenzhen Tongtianxia Cross-Border Business Co., Ltd. was established in 2016 and has 8 years of experience in the security manufacturing industry. Our company are specialized in alarms, surveillance camera, doorbell, locks products in China. All products are certified by CE, MSDS, ISO, ROHS, FCC etc.

 

We can quickly respond to the changing needs of customers, providing effective OEM & ODM services. Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements.

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Full customization

The data is from past contract of the latest inspection report as assessed by independent third parties.

Years in industry(6)

The data is from the latest inspection report assessed by independent third parties

Total floorspace (1,600㎡)

The data is from onsite check of the latest inspection report assessed by independent third parties

ODM services available

The data is from past contract of the latest inspection report as assessed by independent third parties.

Full customization

The data is from past contract of the latest inspection report as assessed by independent third parties.

Years in industry(6)

The data is from the latest inspection report assessed by independent third parties

Total floorspace (1,600㎡)

The data is from onsite check of the latest inspection report assessed by independent third parties

ODM services available

The data is from past contract of the latest inspection report as assessed by independent third parties.

Full customization

The data is from past contract of the latest inspection report as assessed by independent third parties.

Surveillance Camera
Smart Wall Swith & Gateway
Alarm System
Doorbell
Main product
Night Vision
Motion Detection
Two-way Audio
KERUI 4MP CCTV Video Surveillance Outdoor Waterproof IP65 Wireless Solar Camera Wifi IP Camera Solar Panel PTZ Network Camera
$31.16 - $38.12
Min. Order: 1 piece
25 orders
KERUI 3MP V380 Pro Outdoor Camera 4G Sim Card LTE Security 4G CCTV PTZ IP Nertwork Camera Security Surveillance Camera CCTV
$16.39 - $19.12
Min. Order: 2 pieces
10 orders
KERUI 3MP Tuya App WiFi IP Camera With Auto Tracking Indoor Mini Wireless Smart Home Security CCTV Surveillance Camera
$12.94 - $14.63
Min. Order: 10 pieces
Main product
Night Vision
Waterproof / Weatherproof
Motion Detection
KERUI 6MP NVR WIFI Cameras Security System 8CH Outdoor Indoor Video Surveillance Dual Screen Network Camera System CCTV ICSEE
$89.48 - $100.67
Min. Order: 2 sets
22 orders
KERUI New 5MP Intelligent AI Ear Endoscope Camera Waterproof WIFI Wireless Visual Ear Pick Visible Visual Ear Scoop Cleaner Tool
$5.71 - $6.55
Min. Order: 10 pieces
17 orders
KERUI Selling Customized Logo A9 Mini Camera 1080P Mini Camera Indoor Surveillance System Indoor Outdoor Network Camera
$3.17 - $3.71
Min. Order: 10 pieces
T2E 10 Inch Tuya Smart Home Zigbee Gateway Scene Control Panel Wall Switch Support Eight Country Languages Including French
$279.00 - $295.00
Min. Order: 5 sets
2023 New 7 Inch Lcd Touch Screen Zibee Gateway Central Control Panel Android Operation System With Music Audio Playback
$195.00
Min. Order: 1 set
T5E Wall Switch Smart Home Automation System Tuya Switch Scene Panel Wall Push Light Switch Intelligent Home Touch Screen Zigbee
$149.50 - $151.00
Min. Order: 2 sets
Main product
T1E Tuya Smart Home Control Panel Zigbee Automation System 4 inch Touch Screen Display Gateway With Built-in Alexa Voice Control
$76.50 - $79.59
Min. Order: 5 sets
13 orders
T3E new zigbee smart switch with 3 gang relay smart switch gateway with tuya mobile APP
$34.77 - $39.30
Min. Order: 5 sets
7 orders
New T8E 4 inch touch screen switch display panel remote control tuya smart home control panel
$61.30 - $71.33
Min. Order: 10 sets
Wifi
Gsm
KERUI Smart Home Tuya 4g/gsm/wifi Security Alarm Diy System Wireless Door And Window Smart Security Alarm System
$40.50 - $47.25
Min. Order: 2 pieces
Wifi
Gsm
G1 Wifi GSM GPRS Dual Network Security Alarm System 4.3 Inch Touch Screen 4 Wired Zone 99 Wireless Zone Center Monitoring System
$51.79 - $58.55
Min. Order: 5 sets
KERUI W202 GSM Wifi Alarm System Home Security PIR Burglar Smoke Sensor Wireless Alarm System Home Tuya Alarm Monitoring Kit
$34.73 - $39.05
Min. Order: 2 pieces
Wifi
Gsm
Ip
KERUI K52 Smart GSM WIFI Alarm System 4.3 Inch TFT Color Screen Smoke Detector Sensor Motion Sensor Wireless Home Alarm System
$73.28 - $79.39
Min. Order: 2 pieces
8 orders
KERUI M120 Smart Welcome Doorbell 100db PIR Infrared Burglar Alarm Human Motion Detector For Garage Shop Home Security
$3.85 - $4.10
Min. Order: 100 pieces
32 orders
Loudly Speaker High Decibel Burglar Flash Siren Home Security Alarm Siren System Kit
$16.50 - $18.60
Min. Order: 5 pieces
7 orders
Main product
Smart Door
Smart Doorbell
KERUI Wireless Smart Doorbell 33 Songs Home Intelligent 150m Range Plug Door Bell
$3.30 - $4.50
Min. Order: 5 pieces
12 orders
KERUI Home Video Smart Tuya Wifi Doorbell With Camera Intercom Wireless Ring Visual Doorbell
$8.80 - $10.90
Min. Order: 10 pieces
13 orders
Smart Doorbell
Smart Door
Wireless Doorbell Home Security Pir Motion Welcome Chime Door Sensor Sound Alarm 32 Song Smart Doorbell Ring Touch Button
$3.80 - $4.30
Min. Order: 10 pieces
10 orders
X8 Smart Home Doorbell Cat's Eye Visual USB Charge 2.4 Inch Cat's Eye Doorbell 160 Degree Wireless Video Doorbell Home Security
$18.32 - $19.85
Min. Order: 100 pieces
6 orders
Original Brand Well-Designed KERUI M521 57 Ringtones Smart Home Door Bell Multi-Function Intelligent Wireless Outdoor Doorbell
$3.20 - $3.74
Min. Order: 10 pieces
6 orders
KERUI M525 Home Security Welcome Wireless Doorbell Smart Chimes Doorbell Sing Song LED light 60 Songs Waterproof Touch Button
$4.65 - $5.05
Min. Order: 100 pieces
Monitor Camera
Two-way Audio
Night Vision
KERUI Wifi Baby Monitor Camera Temperature & Alarm 3MP Baby Monitor Two-way Audio Baby Camera Security Crying Detection PTZ
$23.10 - $25.87
Shipping to be negotiated
Min. Order: 5 pieces
8 orders
Monitor Camera
Two-way Audio
Night Vision
Baby Monitor Camera Two-way Audio 4X Zoom Baby Monitor With Motion Sensor 2.8 Inch Screen Temperature Crying Detection Infrared
$28.93 - $31.34
Shipping to be negotiated
Min. Order: 100 pieces
6 orders
Wireless Baby Monitor Wifi 5 Inch Baby Camera Monitor Digital Baby Monitor LCD Display Screen Video IR Night Vision Kid Crying
$67.50 - $73.12
Shipping to be negotiated
Min. Order: 200 pieces
KERUI Wifi Baby Monitor Tuya Motion Crying Tracking 5 Inch LCD Screen Baby Camera 2MP Baby Monitor Indoor Camera Feeding Remind
$59.00 - $65.00
Shipping to be negotiated
Min. Order: 100 pieces
6 orders
Main product
Wifi
Gsm
KERUI W181 Tuya Smart Home Alarm Wireless GSM Security Alarm System With Motion Detector Anti-theft WiFi GSM Alarm System
$34.30 - $37.80
Shipping to be negotiated
Min. Order: 2 sets
15 orders
KERUI Wifi Alarm System Glomarket Home Wireless Wifi Fire Smoke TFT Touch Screen Security GSM Tuya Alarm System & Outdoor Camera
$57.58 - $64.75
Shipping to be negotiated
Min. Order: 1 set
9 orders
Main product
Night Vision
Motion Detection
Two-way Audio
KERUI 4MP CCTV Video Surveillance Outdoor Waterproof IP65 Wireless Solar Camera Wifi IP Camera Solar Panel PTZ Network Camera
$31.16 - $38.12
Shipping to be negotiated
Min. Order: 1 piece
25 orders
Main product
T1E Tuya Smart Home Control Panel Zigbee Automation System 4 inch Touch Screen Display Gateway With Built-in Alexa Voice Control
$76.50 - $79.59
Shipping to be negotiated
Min. Order: 5 sets
13 orders
KERUI 3MP Tuya App WiFi IP Camera With Auto Tracking Indoor Mini Wireless Smart Home Security CCTV Surveillance Camera
$12.94 - $14.63
Shipping to be negotiated
Min. Order: 10 pieces
Night Vision
Motion Detection
Two-way Audio
KERUI Dual Lens Network Camera Motion Detection 6MP WIFI Outdoor Camera IP66 Waterproof ICSEE PTZ Outdoor Camera Security System
$16.58 - $19.07
Shipping to be negotiated
Min. Order: 2 sets
11 orders
KERUI Wireless Door Stop Alarm System 125dB Loud Home Security Anti-Theft Door Stopped Alarm
$1.88 - $2.88
Shipping to be negotiated
Min. Order: 10 pieces
8 orders
Home Security Alarm System With Door Windows Sensor High Decibel Burglar Flash Loudly Speaker Siren
$18.50 - $20.99
Shipping to be negotiated
Min. Order: 2 pieces
Night Vision
Two-way Audio
Pan-tilt
KERUI Dual Lens Outdoor Security Camera 6MP Auto Tracking PTZ Camera 3K Wifi CCTV Network IP Camera Dual Screen Surveillance
$15.62 - $17.57
Shipping to be negotiated
Min. Order: 2 pieces
13 orders
Night Vision
Motion Detection
Two-way Audio
New Arrival 6MP Dual Lens Outdoor Camera Color Night Version Wireless Network Dome Camera Motion Tracking Network PTZ Camera
$16.58 - $18.66
Shipping to be negotiated
Min. Order: 2 pieces
11 orders
KERUI 6MP Network Camera Dual Screen 8X Zoom IP Camera PTZ Outdoor 4K Three Lens Wifi CCTV Camera Security Surveillance
$34.33 - $37.19
Shipping to be negotiated
Min. Order: 5 pieces
KERUI WIFI PTZ Camera 6MP Double Screen Network Camera Night Color Version CCTV AI Human Detection Outdoor IP Camera Security
$23.91 - $25.82
Shipping to be negotiated
Min. Order: 5 pieces
Nvr Kit
Night Vision
Motion Detection
KERUI P6-QQ6 8CH CCTV System Wifi Nvr 6MP Network Camera Wifi NVR Kit Security Video Surveillance Double Lens IP Camera System
$89.48 - $100.67
Shipping to be negotiated
Min. Order: 2 sets
9 orders
Nvr System
Outdoor
Waterproof / Weatherproof
KERUI 6MP Network Camera Dual Screen IP CCTV Surveillance System POE Cameras NVR System PTZ Outdoor Wifi Cameras Security System
$118.79 - $133.64
Shipping to be negotiated
Min. Order: 1 piece
6 orders
Nvr System
Two-way Audio
Wifi
KERUI Security Camera System CCTV Kit 8 Channel PTZ IP Camera NVR System Network 4MP Outdoor Camera Surveillance System
$174.77 - $192.94
Shipping to be negotiated
Min. Order: 1 set
10 orders
Nvr System
Outdoor
Night Vision
KERUI 4MP 16CH POE CCTV Cameras NVR Face Vehicle Detection Outdoor Cameras Kit IP Surveillance Network Camera Security System
$416.63 - $449.96
Shipping to be negotiated
Min. Order: 1 set