... power consumption, 4 3 alkaline battery can use 10,000 times, or provide 200 days standby time. ... perfect.Installation method:1. Fixed hole position in the installation position. And drill a hole with the ... Induction to human signal:(1) First detect the position of switch stall (left, right.)(2) If in the ... will slow or does not reach the designated position, you need replace batteries.6. When the ...