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The CamLink DM is built around Hollyland MARS 400S video wireless sets which are conservatively rated 400 ft. LOS range, up to full 1080 P(60), with latency less than 100 msec., and both HDMI and SDI inputs and outputs.

In addition to the receiver, the MARS 400S sets also feature connectivity to up to 4 IOS or Android devices with the HollyView APP.

And the Camlink DM package includes the excellent Portkeys HH7 7" monitor featuring a bright 1200 NITS screen.

The package is completed with our anodized aluminum monitor yoke to provide a lightweight and strong support for the monitor and receiver with comfortable hand grips.




The Portkeys HH7 monitor has two hot swappable NP-F battery slots. And the MARS receiver does not need a battery when powered from the HH7 using our custom power cable.



The adjustable neck strap provides comfortable hands-free viewing position support when needed.




The monitor cage can be conveniently set down upright in viewing position on any flat surface, or it can be mounted on a tripod or light stand with 1/4-20 mount.


monitor cage


The optional hard case has custom foam and can store the transmitter, receiver, monitor and yoke, neck strap and up to 6 NP-F batteries of any size.



Camlink DM with MARS 400S Review

For more information about these outstanding kits in challenging economic times, email us at: sales@camotionlls.com


Battery Running Time Chart

The table below shows typical operating times for the transmitter, and the monitor (while also powering receiver), with different battery types.
Battery type
Typical mah
Transmitter ~3.5 hrs ~6 hrs ~10 hrs
Monitor/Receiver (2 Batteries)* ~2 hrs ~3.8 hrs ~6 hrs
* If only one battery is used on the monitor, the times in the chart will be cut in half.


MARS 400S Specifications

MARS 400S Specifications


Portkeys HH7 Specifications

Display Size 7.0" / 17.8 cm
Resolution1920 x 1200
Aspect Ratio16:9
Viewing AngleHorizontal: 178°
Vertical: 178°
Maximum Brightness1200 cd/m2
Contrast Ratio1200:1
Bit Depth / Color Support8-Bit+FRC (1.07 Billion Colors)
Pixels Per Inch (ppi)323 ppi
Real-Time LUTSDR
Image ControlsCheck Field, Color Temperature Selection, Customizable Aspect Ratios, False Color, Focus Peaking, H/V Delay, Histogram, Image Flip, OSD Flip, Pixel-to-Pixel Zoom, Screen Markers, Underscan, Zebra


Video1 x HDMI Type A Input
1 x HDMI Type A Output
Embedded AudioHDMI
Audio1 x 3.5 mm Headphone Output
Power1 x 4-Pin Input
Other I/O1 x USB 2.0 (USB Type-A)


Format Support
Video FormatHDMI (8-Bit)
DCI 4K: 24
UHD 4K: 30/29.97/25/24/23.98
1080p: 60/59.94/50/30/29.97/25/24/23.98
1080PsF: 30/29.97/25/24/23.98
1080i: 60/59.94/50
720p: 59.94/50
576p: 50
576i: 50
480p: 60/59.94/50
480i: 60/59.94/50


DC Input Power7 to 24 VDC
Battery Type1 x L-Series
Power Consumption11 W
Mounting4 x 1/4"-20 Female
Operating Temperature32 to 104°F / 0 to 40°C
Material of ConstructionPlastic
Dimensions (W x H x D)7.48 x 4.88 x 0.79" / 190 x 124 x 20 mm
Weight10.58 oz / 300 g
Warranty LengthLimited 1-Year Warranty