line working voltage: 4.0~40V
line detection voltage: 0.0~100V
Working current: <20mA
Display mode: 0.28 “LED,
Working temperature: -10 ~ +65
Limit working condition
line working voltage: 4.0~40V
line detection voltage: 0.0~100V
Working current: <20mA
Display mode: 0.28 “LED,
Working temperature: -10 ~ +65
Limit working condition
NodeMCU Lua V3 ESP8266 WIFI with ch340
Arduino UNO Prototyping Shield
(W1209) Programmable Temperature Control Switch Relay 




