N42DJS2 - Surveillance Camera Dahua Technology - Free user manual and instructions
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| Product Type | IP Surveillance Camera |
| Brand | Dahua Technology |
| Model | N42DJS2 |
| Resolution | 4MP (2560x1440) |
| Lens | 2.8mm fixed lens |
| Night Vision | IR LEDs, up to 30m |
| Power Supply | 12V DC / PoE (IEEE 802.3af) |
| Dimensions | Φ150mm x 110mm |
| Weight | 400g (without mounting bracket) |
| Ingress Protection | IP67 |
| Operating Temperature | -30°C to +60°C |
| Connectivity | RJ45 10/100 Base-T |
| Storage | microSD card slot (up to 256GB) |
| AI Features | Smart motion detection, human/vehicle classification |
| Maintenance | Clean lens with a soft, dry cloth; check connections periodically |
| Safety | Use certified power adapter; ensure proper mounting to avoid falls |
| Spare Parts & Repairability | Parts available through authorized Dahua dealers; repair by qualified technicians |
| General Information | Compatible with Dahua NVRs and third-party ONVIF systems; 2-year warranty |
Frequently Asked Questions - N42DJS2 Dahua Technology
How do I reset the Dahua N42DJS2 to factory settings?
Press and hold the reset button on the camera for about 10 seconds until you hear a click or see the indicator light flash. Alternatively, you can reset via the web interface under Settings > System > Default.
Can I use this camera outdoors?
Yes, the N42DJS2 has an IP67 rating, making it dust-tight and protected against water jets, suitable for outdoor use.
Does the camera support audio?
Yes, it has a built-in microphone and speaker for two-way audio communication.
What is the maximum microSD card capacity?
It supports microSD cards up to 256GB for local storage.
How do I connect the camera to my smartphone?
Download the DMSS app from the App Store or Google Play, create an account, and add the camera by scanning its QR code or entering its serial number.
What is the field of view for this camera?
With a 2.8mm lens, the horizontal field of view is approximately 105°, vertical 56°, and diagonal 125°.
How do I enable motion detection?
Log into the camera's web interface, go to Event > Smart Motion Detection, and enable it. You can set detection areas and sensitivity.
Does the camera work with third-party NVRs?
Yes, it supports ONVIF Profile S, so it is compatible with many third-party NVRs and software.
What power source is recommended?
You can use either a 12V DC adapter or a PoE switch (IEEE 802.3af) for power and data over a single cable.
How far can the IR night vision reach?
The IR LEDs provide clear images up to 30 meters in complete darkness.
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USER MANUAL N42DJS2 Dahua Technology
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Product information
Brand : Dahua Technology
Model : N42DJS2
Category : Surveillance Camera