DS18B20 Temperature Sensor
$20
$50
HOSIDEN HLM8619
$55
$100
DHI-NVR4232-4KS2
$275
$305
Hikvision DS-2CD1141-I
$79
$85
CHINT DZ47LE-32 4P C10 C16 C20A C25A C32A Earth Leakage Circuit Breaker/Residual Current Operated Circuit Breaker