DS18B20 Temperature Sensor
$20
$50
HOSIDEN HLM8619
$55
$100
DHI-NVR4232-4KS2
$275
$305
Hikvision DS-2CD1141-I
$79
$85
Mean Well Switch Power Supply LRS-150-12V/LRS-150-15V/LRS-150-24V/LRS-150-36V/LRS-150-48V