1. Use four knobs and voltmeter, the number of knobs and voltmeter can be customised.
2. The voltmeter pointer is a special effect, it will change during the rotation.
3.The knob quickly skimmed is not responsive, to turn to the correct password, stay for a while to open the electromagnetic lock.
This voltage code prop includes: controller, power adapter, voltmeter, knob, electromagnetic lock.
*Please contact us in advance if you have customisation needs.
*Our props are customisable handmade products and may use different parts, but the function will be the same as the video and description.