Check the listing for details. S & G Tool Aid 28100 Computer Safe Automotive Logic Probe. Condition: New. Listed at 22.99 USD. S & G Tool Aid 28100 Computer Safe Automotive Logic Probe S&Gs most computer safe circuit tester. High impedance - the current draw is less than 7 milliamps to protect all vehicle circuits including computerized engine and body controls, sensitive electronic sensors, microprocessors, electronic ignition components and air bags. Dual color LED indicates red for power (high) and green for ground (low). Can be used as a standard, single lead circuit tester. For 6, 12 and 24 volt systems. Insulated probe has an exposed length of 3 3/8". Includes Protect-A-Terminal, Probe Adapter to prevent damage to electrical connectors. Has 6 feet of heavy duty, 18 gage dual leads with large battery clips for easy hook-up. Specifications Computer Safe Automotive Logic Probe Electrical Rating: 7 Milliamp (Current Draw) Length: 6 Foot Application(s): Standard, Single Lead Circuit Tester, 6/12/24 Volt System Dual Color: LED Red (Power High), Green (Ground Low) Includes: 3-3/8 Inch Exposed Length Insulated Probe, Protect-A-Terminal, Probe Adapter, 18 Gauge Dual Lead Packaging: Type Carded