Everything you need to assemble a 4:1 lifting system.Kit yields 65' of liftKit includes:CMI Uplift PulleyCMI Uplift Companion Pulley(2) locking steel
CMI Uplift Kit 65 Feet
RESCUE LIFT DEVICE - RM-RUP-502
Aybey Elektronik
AUTOMATIC / EMERGENCY RESCUE DEVICE (ARD / ERD)
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CMI Micro Hauler Single Pulley
60VDC Elevator Automatic Rescue Device ( ARD ), Elevator UPS
Four-to-one mechanical advantage system from CMI, with a remote release feature., Kit Contains: Uplift Unit (PUL170), Uplift Pulley (PUL171), 2x SMC
Uplift Unit
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Hh-Ard-3P Elevator Automatic Rescue Device: Xi'An Uplift Parts Co
Elevator emergency automatic rescue device, Elevator Wiki