Heavy Duty Automotive Circuit Tester, Premium 6-24V Test Light with Extended Spring Test Leads & Sharp Piercing Probe, Circuit Voltage Tester with Replacement Indicator Light for Car/Vehicles 1-Pack ship03 1 RFID Read UID Project

1 RFID Read UID Project 27

working diameter: 19

012 Inches / 20mm x 20mm x 0

Only need to look at the top of the lens horizontally to see the distance clearly

They need each other for balance

Heavy Duty Automotive Circuit Tester, Premium 6-24V Test Light with Extended Spring Test Leads & Sharp Piercing Probe, Circuit Voltage Tester with Replacement Indicator Light for Car/Vehicles 1-Pack ship03 1 RFID Read UID ProjectHeavy Duty Automotive Circuit Tester, Premium 6 24V Test Light with Extended Spring Test Leads & Sharp Piercing Probe, Circuit Voltage Tester with Replacement Indicator Light for Car Vehicles Product Features Extra Spring Light Bulb : High visibility and strictly tested long service life spring test light bulb to indicate circuits signal. Can be used for common 6V 12V 24V DC circuit test; We throw in a replacement spring bulb as an extra to make it