DS18B20 Temperature Sensor
$20
$50
HOSIDEN HLM8619
$55
$100
DHI-NVR4232-4KS2
$275
$305
Hikvision DS-2CD1141-I
$79
$85
CHINT NB1-63DC 4P 1000V Type C 6A 10A 16A 20A 25A 32A 40A 50A 63A DC circuit breaker photovoltaic Switch