Feature:1. Good Compatibility: This craftsman garage door opener has good compatibility and is compatible with for Liftmaster, for Chamberlain and for Sears Craftsman garage door remotes, which is very useful.2. Easy To Use: This garage door opener keypad is a secure keyless entry system that opens and closes your garage door without the use of a remote or key. The wireless keyless entry system opens the garage door using a dedicated 4 digit code that you program directly into the device.3. Easy To Install: This wireless keyless entry keypad offers wireless installation and wireless programming with large backlit buttons on the keypad providing quick and easy access. Offers a 1 touch close feature that makes closing your garage door easier than ever.4. Rolling Code Technology: This wireless keyless keypad uses rolling code technology to easily synchronize with existing door opener frequencies and eliminate radio wave interference. The keypad has 3 channels for 3 openers, so you can control up to 3 motor units with just 1 keypad.5. Excellent ABS Material: This garage door opener remote keypad is made of using excellent ABS material, which is sturdy and abrasion resistant, not easy to be damaged, and has a long service life.Specification:Item Type: Garage Door Opener KeypadMaterial: ABSReplace: for 877MAX G940EV-P2 878MAX 377LM 977LM 877LM 66LMBattery: 1 x 6F22 400mAh Alkaline Battery (Included) Transmission Distance: Approx. 100m / 328.08ft (Open Field) Compatible Model: For Chamberlain: for 740CB, for 750CB, for 756CB, for 850CB, for 853CB, for 856CB, for 940CB, for 940CD, for 940D, for 950CB, for 950CD, for 950D, for 953CB, for 953CD, for 953D, for 956CB, for 956CD, for 956D, for 940EV, for 950EV, for 953EV, for 956EV, for KLIK1U, for KLIK2U, for KLIK5U, for 940ESTD, for 950ESTD, for 953ESTD, for CLT1, for CLK1, for MC010 41A##, for 414A4#, for 44##, for 415##, for 41###, for 41###, for 455###, for 41A7### etc.For LiftMaster: for 51LM, for 61LM, for 62LM, for 63LM, for 81LM, for 82LM, for 83LM, for 84LM, for 91LM, for 92LM, for 94LM, for 96LM, for 355LM, for 365LM, for 370LM, for for 371LM, for 372LM, for 373LM, for 373P, for 374LM, for 376LM, for 377LM, for 378LM, for 398LM, for 891LM, for 893LM, for 890MAX, for 893MAX, for 895MAX, for 970LM, for 971LM, for 972LM, for 973LM, for 974LM, for 976LM, for 977LM, for 66LM, for 377LM, for 877LM, for 877MAX, for 878MAX etc.For Genie: for ACSCTG Type 1, 2, 3, for G1T, for G2T, for G3T-BX, for GICT390-1, for GICT390-3, for GICTD-1, for GICTD-3, for GIFT390-1, for GIFTD-1 GIT-1, for GIT-2, for GIT-3, for GITR-3, for GK-BX GWKP, for Screw Drive, for Bluemax, for Chain Drive, for Chain Max, for Chain Lift, for Chain Glide, for Genie PRO, for Excelerator, for Trac Drive, for Lift a Door, for Hercules etc.For Craftsman: 139.18750, 139.30498, 139.30499, 139.3050, 139.53680, 139.53681, 139.53684, 139.53753, 139.53754, 139.53758,139.53776, 139.53778, 139.53859, 139.53879, 139.184##, 139.185##, 139.188##, 139.531##, 139.532##, 139.533##,139.534##, 139.535##, 139.536##, 139.537##, 139.538##, 139.539##, 139.54985 etc.For Linear: for MCT-1, for MCT-2, for MCT-3, for MCT-11, for ACT-21A, for ACT-22A, for ACT-31B, for LPWKP, for MDT-1A, for MDT-2A, for MDT- 4A, for MDTK, for MDR, for MDR-2, for MDR/U, for MDRG, for MGR, for MGR-2, for MGT, for SMDRG, for LDO33, for LDO50, for LSO50, for LCO75, for LDCO800, for LDCO850, for LDCO852, for LDC0863B, for Moore-O-Matic, for Delta DTC 3, for Multi-Code, 1089, 3060, 3070, 3089 etc.For Overhead Door: for 37517R, for ACSCTG Type 1, 2, 3, for ACSCTO Type, for 01T-BX, for O3T-BX, for 0C2T-1, for 0C0390-1, for OCDT-1, for 0C0DTR-3B, for dyssey 1000, for Destiny 1200, for Destiny 1500, for Standard Drive 650, for 496CD, for 696CD, for 800, for CLD51, for Phantom 777CD, for Python 0CG510, for Python OCG55OL, for Python 0CG710, for Python 0CG750L, for 930-CD, for 950-CD Signature, for 990-CD Overdrive, for GCG35OL, for GCG350ML, for PCG700ML etc.For Wayne Dalton(372.5MH2): Classic Drive 3014 or 3018, 3214, 3314, 3316, for ProDrive 3220C, 3221C, 3222C, 3224C, 3320B, 3322B, 3324B, 327310,334642, for 3BTM, 3973C, 300643, 334632, 302083 etc.For Dip Switch: 7-12 Code Dip Switch Remote. (For compatible Dip Switch brands, please see rows 9-17 of the compatibility list on the second page of the main image).Package List:1 x Garage Door Opener Keypad2 x Screws2 x Expansion Screws1 x Manual