Multi-Functional High-Brightness Color Light Intelligent Sensor On-Off Electroscope Pen, Color Light Detector Pen Option:Color Light Detector Pen One Package Size 30cm *

One Package Size 30cm * 14cm * 8cm / 11

69inch * 4

Laboratory Labpro Digital Temperature Controller Cum Pid Controller Cm

40HQ: 2035 cartons * 40 pcs = 81400 pcs

Multi-Functional High-Brightness Color Light Intelligent Sensor On-Off Electroscope Pen, Color Light Detector Pen Option:Color Light Detector Pen One Package Size 30cm *1. Neutral line identification: the green light is always on 2. FireWire identification: the traffic lights are highlighted at the same time 3. Sensitive touch pole: when the tip of the pen touches the line, measure 4. Put your hand on the touch pole 5. Stretch spring: good elasticity, precise carton up and down the metal 6. Button battery: put in 3 pieces of LR41 button battery 7. Resistor chip: intelligent circuit board, sensitive and stable 8.