The company is closed on: 2024-04-01
Poniedziałek Wielkanocny
Language:Български Český Dansk Deutsch Eesti Ελληνικά English Español Français Italiano Latviešu Lietuvių Magyar Nederlands Polski Português Pусский Română Slovenski Slovenský Suomi Svenska
Currency:1 AUD - 2.5095 PLN 1 CAD - 2.8328 PLN 1 CHF - 4.2813 PLN 1 CZK - 0.1650 PLN 1 DKK - 0.5607 PLN 1 EUR - 4.1809 PLN 1 GBP - 4.8859 PLN 1 HUF - 0.0105 PLN 1 NOK - 0.3582 PLN 1 PLN - 1.0000 PLN 1 SEK - 0.3610 PLN 1 USD - 3.9199 PLN
Menu Recommended article
CCTV system admin default login and password
AHD, HD-CVI, HD-TVI, PAL VANDALPROOF CAMERA GT-CH21D3-28VF - 1080p 2.8 ... 12 mm GEMINI TECHNOLOGY
DESCRIPTION Megapixel camera with 1/2.9" Sony CMOS sensor and AHD / HD-CVI / HD-TVI / PAL.
The AHD / HD-CVI / HD-TVI interface allows to transmission of analog video signal via coaxial cable in 1080p resolution. It enables the transmission of HD resolution images for even 500 m distance with keeping the low costs of the installation. During transmission there are no delays and is maintained the original, high quality image.
In the case of video transmission using a twisted pair cable and matching transformers (balun), be aware of the possibility of signal reflections and interfering signals.
Setting the camera in PAL mode allows to obtain an image in 960H resolution. The appropriate signal format selection is done by tilting and holding the joystick for 5 s without entering to the OSD menu. Changing the signal to the NTSC in the camera causes loss of image in connected AHD recorder.
SPECIFICATION Search for similar
Standard :
AHD , HD-CVI , HD-TVI , PAL
Sensor :
1/2.9 " Sony CMOS IMX322
Digital Image Processor :
Nextchip NVP2441H
Matrix size :
2.4 Mpx
Resolution :
1920 x 1080 - 1080p , AHD-H , HD-CVI , HD-TVI , 960 x 576 - 960H , PAL
Range of IR illumination :
20 m
IR illuminator power adjustment :
Automatic
Lens :
2.8 ... 12 mm, 2 Mpx
View angle :
83 ° ... 23 ° (manufacturer data) 93 ° ... 33 ° (our tests result)
S/N ratio :
> 50 dB
Video output :
1 Vpp / 75 Ω, AHD / HD-CVI / HD-TVI / PAL - selectable by switch
Main features :
Sense-UP - (Slow Shutter) - Increase the sensor sensitivity max. x 30 D-WDR - Wide Dynamic Range 2D-DNR / 3D-DNR - Digital Noise Reduction F-DNR (Defog) - Reduction of image noise caused by precipitation ICR - Movable InfraRed filter Motion Detection - max. 4 zones Privacy zones - max. 4 Day/Night mode (color/b&w/auto) WB - White Balance (ATW/AWB/manual/indoor/outdoor) BLC - configurable Back Light Compensation HSBLC - High Light Compensation (spot) Mirror - Mirror image image "freeze" Sharpness - sharper image outlines Monitor type correction - LCD/CRT
OSD menu :
Application :
The camera is designed for indoor use, due to the possibility of steam condensation.
Power supply :
12 V DC / 240 mA
Power consumption :
≤ 2.9 W
Housing :
Metal
Color :
White
Vandal-proof :
"Index of Protection" :
IP67
Operation temp :
-10 °C ... 50 °C
Weight :
0.98 kg
Dimensions :
Ø 148 x 130 mm
Supported languages :
English, Chinese Traditional, Chinese Simplified, French, Spanish, Dutch, German, Polish, Portuguese, Russian, Turkish, Italian
Manufacturer / Brand :
GEMINI TECHNOLOGY
Guarantee :
2 years
PRESENTATION
Camera view after remove the Dome cover - camera lens adjustment knobs are visible:
Camera mounting dimensions:
The change of the AHD / HD-CVI / HD-TVI / PAL standard is done with the corresponding button by keeping it pressed for approx. 5 seconds, without going into the OSD menu:
OUR TESTS
Camera image at artificial illumination (about 30Lux):
Camera image at night conditions with internal built-in IR illuminator on:
Camera image at direct strong light opposite to camera:
Camera image at artificial illumination (about 30Lux):
Camera image at night conditions with internal built-in IR illuminator on:
Camera image at direct strong light opposite to camera:
Camera image at artificial illumination (about 30Lux):
Camera image at night conditions with internal built-in IR illuminator on:
Camera image at direct strong light opposite to camera:
FILES
OSD menu screenshots EN
2 MB
PACKAGE Dimensions (L x W x H): 205x205x200 mm Package: Carton Gross Weight: 1.362 kg
COMPONENTS OF WORKING WITH: GT-CH21D3-28VF
Net: 0.00 PLN
Gross: 0.00 PLN
Weight: 0.00 kg
Warranty of today's shipping if you order in time:
Especially recommended NVR DS-7732NXI-K4 32 CHANNELS ACUSENSE Hikvision Net: 3310.00 PLN
NVR NVR4108-4KS2/L 8 CHANNELS DAHUA Net: 878.00 PLN
AHD, HD-CVI, HD-TVI, CVBS, TCP/IP DVR XVR5108HS-I3 8 CHANNELS DAHUA Net: 1000.00 PLN
IP CAMERA IPC-HFW2449T-AS-IL-0360B WizSense - 4 Mpx 3.6 mm DAHUA Net: 1158.00 PLN
MONITOR VGA, HDMI LM22-L200 21.5 " DAHUA Net: 304.34 PLN
AHD, HD-CVI, HD-TVI, CVBS, TCP/IP DVR XVR5108HS-4KL-I3 8 CHANNELS DAHUA Net: 1691.00 PLN
NVR NVR2108HS-8P-S3 8 CHANNELS, 8 PoE DAHUA Net: 1691.00 PLN
MULTI-FUNCTIONAL CCTV TESTER CS-H8-70H Net: 2716.80 PLN
NVR NVR301-04LS3-P4 4 CHANNELS, 4 PoE UNIVIEW Net: 760.00 PLN