Wholesale Distributors for the Car Audio, Auto Electrical, Home Theatre,
Communication, Commercial AV and Consumer Electronic Markets

Servicing Western Australia Since 1984
For ordering call 08 9240 2233 Monday to Friday from 8:30AM to 4:30PM


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Designed for CCTV system installation and maintenance. It helps to set up the IP and analog coaxial cameras, HD or Non-HD cameras, as well as other security equipment. Also use it to troubleshoot network issues, cabling and more!
Code: T540
Brand: DOSS


  • The perfect tool for CCTV system installation and maintenance
  • 5.4" Full HD (1920x1080) IPS touchscreen interface which is a great size for the tool box
  • Supports more protocols than the majority of testers on the market: IP, TVI, CVI, AHD, SDI, ONVIF version 2.4 Profile S, Q, A, T(only H.265)
  • Built-in Wi-Fi
  • Easy to use GUI
  • Built-in 7.4V 3350mAh Li-ion Polymer battery
  • Support for the latest CCTV technologies including 4K cameras, H.265 compression, and more
  • Video transmission channel testing
  • ONVIF PTZ and analog PTZ control
  • TDR cable testing
  • UTP cable test
  • Cable scan and much more!

Connections & Ports:

  • Top
    • HD-SDI, EX-SDI
    • LED Flashlight
    • HDMI in
    • 12V 3A DC output
    • RJ45 LAN port or POE output
    • Micro SD card slot (Micro SD card not included)
  • Bottom
    • 12V DC input
    • RS485 
    • 3.5mm audio input
    • RJ45 - UTP/SCAN
    • VGA port

Camera Tests:

  • H.265 & H .264 IP, 4K video display via mainstream 
  • 8MP TVI test, 3840 x 2160P 12.5/15 FPS, 4xzoom, video record & playback, coaxial PTZ control &call OSD menu 
  • 8MP AHD test, 3840x2160P 15 FPS, 4xzoom, video record & playback, coaxial PTZ & call OSD menu 
  • 8MP CVI test, 3840 x 2160P 12.5/15FPS, 4xzoom, video record & playback, coaxial PTZ & call OSDmenu 
  • 8MP EX-SDI test, 3840 x 2160P 25/30FPS,4xzoom, video record & playback, coaxial PTZ & call OSDmenu
  • HD-SDI test, 1920 x 1080P 25/30/50/60 FPS, 4xzoom, video record & playback, coaxial PTZ & call OSDmenu
  • 3G-SDI test, 1920 x 1080P 50/60 FPS, 4xzoom, video record & playback, coaxial PTZ & call OSD menu
  • Auto HD app, auto recognize HD coax camera type andresolution, support snapshot, video record& playback, coaxial PTZ & call OSD menu.
  • VGA input, up to 1920 x 1200P 60FPS, support snapshot, video record & playback.
  • HDMI Input, up to 4K 30FPS, support snapshot, videorecord & playback.
  • Rapid ONVIF, Auto log in and display image, create testing report
  • IPC test pro, auto-scan all network segments, auto-detect and display the PoE power. With the input username and password, quickly scan the camera image, batch activate HIKVISION, Dahua, and Uniview cameras. Easy access to ONVIF interface and test tools.
  • Support the AXIS camera test with AXIS tool APP.
  • Support Hikvision(HIK), Dahua(DH), Uniview(UNV), Huawei test tool. 
  • Batch activate cameras, modify IP addresses and passwords, self-defined modify channel name. 
  • Quickly change H.264 and H.265 videos.
  • Display IP and analog camera images at the same time.
  • CVBS camera test, PTZ controller
  • DC12V/3A power output, power camera from 12V DC. 
  • Rapid video, quickly detect all network cameras andauto display.
  • Built-in Wi-Fi, display image from the wireless camera, create WIFI hotspot 

Cable Tests:

  • UTP telephone cable tester, save the test results. 
  • Test pair status, length, attenuation, reflectivity, impedance, skew, etc, save the test result. 

Other Functions:

  • Network tool: Ping, IP scan, Port Flash, DHCP server, Trace Route
  • Tester Play: Tester, android version mobile phone and PC display at the same time 
  • Traffic monitoring, display network port or WIFI connection real-time upload and download speeds and other network parameters
  • Media player, 4K video files, and MKV/MP4 media files play
  • Display the resolution of the IP camera images
  • Audio in, support record and save the audio/LED lamp, calculators, music players, and other application tools
  • Built-in micro SD card slot, support up to 32GB (NOMicro SD card include)
  • 7.4 V 3350mAh Li-ion Battery, lasts up to 6 hours with 4 hours charge time

**Note: TDR cable testing is only the basic feature, it is only for RJ45 cable and it has a higher deviation than others, also no calibration. The TDR test results will be not accurate or mixed when testing the short RJ45 cables. The tester is suggested to test the RJ45 cable over 10m in length.




New 5.4 inch IPS touch screen, 1920x1080 resolution

Video Mode


1 channel BNC input, NTSC/PAL (Auto adapt)

PTZ control,RS485 control, Baud 600-115200bps, compatible with more than 30 protocols such as PELCO-D/P, Samsung, Panasonic etc

IP camera test

IP Discovery/Quick ONVIF/IPC test /RTSP play /Client APK

Rapid Video

Auto view the video, create testing report

HIKVISION test tool

support batch activate HIKVISION cameras and modify IP address, modify password etc. Self-defined modify channel name, can quickly changeH.264 and H.265 video, open wide dynamic mode. Factory restore, etc.

DAHUA test tool

support batch activate DAHUA cameras and modify IP address,username and password. Self-defined modify channel name.

HD Coaxial test

8MP TVI camera test, 3840 x 2160P 12.5/15 FPS, UTC control/ call OSD menu

8MP CVI camera test, 3840 x 2160P 12.5/15 FPS, UTC control / callOSD menu

8MP AHD test, 3840 x 2160P 15FPS, UTC control / call OSD menu

8MP EX-SDI, HD-SDI, 3G-SDI, UTC control / call OSD menu

Auto HD app,auto recognize HD coax camera type and resolution, support snapshot, video record& playback, coaxial PTZ& call OSD menu

HDMI input

1 channel HDMI input, support 4K 30FPS. The resolution as follow: 4K_3840 x 2160/2K_2560 x 1440P/ 1920×1080P /1920×1080i /720×480P /720×576P /1280×720P/1024×768P/1280×1024P /1280×900P /1440×900P, etc

VGA input

1 channel VGA input, support 1920 x 1200P 60FPS. The resolution as follow: 1920 x 1200P 60FPS/ 1920×1080P 60FPS /1792×1344P 60FPS /1680x 1050P 60FPS/(1600x1200P/900P 60FPS)/1440x900P 60FPS/1360x768P 60FPS/(1280x1024/960/800/768/720P 60FPS)/1152x870P 60FPS/1024x768P 60FPS/800x600P 60FPS/600x480P 60FPS.

Zoom Image

4x zoom, to enlarge image, Screen snapshot, record, save, view and record and play back

Power output

12V/3A power

Output DC12V/3A power out, supply temporarily power for the camera

PoE power output

48V PoE power output, max power 25.5W

Cable test



UTP cable test

Test UTP cable connection status and display on the screen. Can detect the near-end, mid-end and far-end fault point of the network cable crystal head.

RJ45 TDR cable test

Test cable pair status, length, attenuation, reflectivity, impedance, skew, can create test report. measurement range 180M.

Tester Play

screen projection:Tester, mobile phone and PC display at the same time (For android version mobile phone)

Network test

Trace route,Link monitor, DHCP server, port flashing, Ping test


Built in WIFI, speeds 150M, display wireless camera image

Audio test

1 channel audio signal input, test whether sound normal.

Power management

Display DC 12V input & output voltage and power in real time

Data monitor

Captures and analyzes the command data from controlling device, also can send hexadecimal

External power supply

DC 12V 1A


Built-in 7.4V Li-ion battery, 3350mAh


After charging 3-4 hours, normal working time 6 hours

Operation setting

OSD menu, select your desired language: English, Chinese, Korean, Russian, Italian, French, Polish, Spanish, Japanese,Deutsch,Turkish,Portuguese, Czech etc

Auto off

1-30 (mins)

Working Temperature

-10°C--- 50°C

Working Humidity



183mm x 110mm x 36.5mm /0.32kg


  • T540 tester
  • Power Adaptor DC12V 1A
  • Network cable tester 
  • BNC cable
  • RS485 cable 
  • DC12V Power cable
  • Audio cable 
  • Safety cord
  • Wrist belt
  • Carry case