model SPP1409Requires 3 AA batteries not included.Optional AC adapter is not included. Easy method to check a 12 or 38 drive torque wrench Highly Accurate 1 CW and 1 CCW of indicated value Large, easy-to-read backlit LCD screen Three primary torque checking modesTrack, Peak Hold, First Peak Integrated exercise adaptor on mounting plate to break in mechanical torque wrenches before testing Battery powered by 3 AA alkaline batteriesoptional AC adaptor available DTS8269FAST SHIPPING - see feedbackShips next business day or same business day if paid by 630 AM Pacific time.