School Bell Timer Switch 220V Digital Microcomputer Auto Ring Controller Device
Description：
Working voltage AC240V
Timing error 0.5s/day Load capacity Resistance 25A Temperature -10C~+50C Dimension: 126×88×51mm Max time length 1s~23h59m59s Voltage scope 85%~110% Consumed power <4W Relative Humidity <95 Why Choose Mccolank:
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