Multi-Functional High-Brightness Color Light Intelligent Sensor On-Off Electroscope Pen, Color Light Detector Pen Option:Color Light Detector Pen the more holes

the more holes

Laboratory Labpro Digital Temperature Controller Cum Pid Controller Cm

69inch * 4

Display: LCD liquid crystal display with automatic backlighting

Whether in a university lab

Multi-Functional High-Brightness Color Light Intelligent Sensor On-Off Electroscope Pen, Color Light Detector Pen Option:Color Light Detector Pen the more holes1. 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.