... EN, TN, JN are all called Constantan, EN and TN don not give the same EMF output curve as JN. EN ... EN, TN, JN are all called Constantan, EN and TN don not give the same EMF output curve as JN. EN ...
... :3.5inch large screen +video +door bell+ don't disturb Why to buy it ? Enjoy technology ... the video Door bell function ,peephole +door bell Don't disturb ,have a nice rest without ring ... button by 1500pcs at least per 3pcs AA battery.“Don’t disturb” function : When hold monitor button ... indoor display have no door chime sound . Cancel “don’t disturb function “: just hold monitor button for seconds ...
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