DS18B20 Temperature Sensor
$20
$50
HOSIDEN HLM8619
$55
$100
DHI-NVR4232-4KS2
$275
$305
Hikvision DS-2CD1141-I
$79
$85
Original PT42638NHDXY Board 42U2P-Y-MAIN LJ41-08592A LJ92-01737A