JH640-420 Long Range Surveillance Thermal Imager

The JH640-420 thermal security camera is equipped with a high-end 640×512 MWIR cooled sensor and a 21–420mm continuous zoom lens. This advanced system allows for clear identification of targets at long distances. It can be used independently for long-range surveillance or integrated into border and coastal EO/IR systems, making it ideal for extended monitoring tasks.

Technical Specifications

Detector
Detector	Cooled FPA MCT
Resolution	640×512, 15μm
Spectral band	3.7–4.8μm
NETD	18mk@25ºC
Cooling	Stirling cooler
Cool down	8min @ 25ºC
Lens
Focus length	21mm–420mm continuous zoom
F number	4
FOV	1.31° (H) × 1.05° (V) –25.19° (H) × 20.96° (V)
Auto focus	Yes
Image Presentation
Video output	PAL
Frame frequency	50Hz (100Hz on request)
Digital video	LVDS
Brightness & Contrast	Auto / Manual
Calibration	Manual / Background calibration
Polarity	BH / WH
E-zoom	×2, ×4
Reticle display	ON / OFF
Reticle position	Adjustable
Image enhancement	Yes
Image flip	Vertical / Horizontal
Communication control	RS422
Power Specification
Power supply	DC24~36V (with polarity protection)
Power consumption	≤10W @ 25ºC
Environmental Specification
Operating temperature	-32ºC ~ +60ºC
Storage temperature	-40ºC ~ +70ºC
Vibration test	GJB150.16-86 / MIL-STD-810F-514.5
Shock test	GJB 150.18-96 / MIL-STD-810F-516.4
High temperature test	GJB150.3-86 / MIL-STD-810F-501.4
Low temperature test	GJB150.4-86 / MIL-STD-810F-502.4
Physical Specification
Weight	≤3kg
Dimension	304mm × 134mm × 132mm
Color	Oxide black

 

   

Special Admixtures

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Santo Chemical Limited , https://www.santchem.com