Normal cctv camera is a camera only, and must work with additional DVR device for video recording.   C902 is a Coomatec DVRCam Micro SD Card DVR CCTV Camera.It has video-out for real time viewing, and  it can record video by itself. You only need a Micro-Card (2GB--64GB) to insert in. the image quality is very good by Sony CCD. The 2pcs array Ir leds support well night view up to 30-50m.

With a built-in Trans Flash (TF) card slot, C902 acts as an internal DVR recording system! Simply insert a Trans Flash (micro SD or micro SDHC) memory card with up to 64 GB of storage and you can record any time. This Surveillance Camera is equipped with 2pcs 3rd array LEDs for 30M night view recording.

One cons we have to say is that the video saved is not so good as in the real time view for the size is changed into 640*480. And the video can't be playback in real time view.

The DVRCam C902 is widely used in warehouse, yard, convenience store, home and office.

Features:

Simple use -- just plug into a wall power socket, it starts to record.

Sony CCD  -- Good quality real time view

24hrs x 7days Recording

MPEG4 compression--smaller video size, longer recording time.

Circularly recording--never run out of storage

10s recording after power is off--continue to record even the theft cut the power off.

Easy to set up time--the time setting software is built in the DVRCam, and users don't need to

find software. Insert the TF card and connect the DVRCam to PC, click the built in software to sync

 

DVRCam WR C902 specification

Video Camera Basics

Dimensions                 28*13*9cm

Gross Weight              820g

Power Adapter             Input: C 100~240V; Output: DC 12V, 2A

Micro processor           ARM9 32-bit microprocessor core

TF Card Support           Up to 64GB

Warranty                     Two-years parts

Video Camera Details

Type                          White

Digital Video Format      MPEG4/3gp;VGA (640 x480)  

Lens                           f=12mm

Field of View                45 degrees (diagonal)

Night Vision                 30-50m

Infrared Les                2pcs 3rd generation IR LED ARRAY   

Minimum illumination      0.1lux/f1.2

SNR                           48db

Operating Temperature  -10°C~60°C