Four Function Digital Readout On An Easy-To-Read Backlit LCD: Tach : 249 to 9,990 RPM (+ / -1% accuracy) Advance Degrees (2 and 4 cycle): 0o to 90o (+ / -0.5o max accuracy) Dwell: 0o to 180o / 2-12 Cylinders (+ / -1o accuracy) Volts:: 10 to 16 Volts DC (+ / -1% accuracy) Patented Skip Circuitry Tests Up to 9,990 RPM. Unit Can Switch From 2-Cycle Distributor less (DIS) to 4-Cycle Conventional Ignition Systems Constructed With Heavy-Duty ABS / Polycarbonate Shockproof Housing, Molded Boots, and a Built-In Hand Guard to Provide Maximum Protection For the Timing Light and the User Uses Detachable 6 Foot Leads With Insulated Wire and Heavy-Duty Battery Clips With Metal Inductive Pickup Constructed With Durable Coaxial Cable That Accommodates Up to 10mm Plug Wires Includes a Molded Plastic Storage Case and Instructions in English, French and Spanish Constructed with Heavy Duty 6-Foot Oil and Grease Resistant Leads Extra Large Insulated Metal Clips Are Easy to Use and Eliminate the Risk of Accidental Shock Includes Instructions in English, French and Spanish
