DS18B20 Temperature Sensor
$20
$50
HOSIDEN HLM8619
$55
$100
DHI-NVR4232-4KS2
$275
$305
Hikvision DS-2CD1141-I
$79
$85
4G/3G/GPRS/2.4G wifi Wireless Router Card Antenna Extension Cable SMA RG174 Extension Cable
Note:
There are 4 types(A,B,C,D) for optional;
Please refer to the picture,choose the type you want;