Offered in standard single speed and under-the-cover, variable frequency drive, dual speed, 3-phase NER/ER Series includes guardian smart brake technology, which consists of fail-safe, maintenance-free brake. Hoists have upper and lower limit switches, nickel-plated load chain, and 5 or 6 pocket load sheaves. Count hour meters, which record lowering starts and hoist on time, are standard on both NER and ER models for preventive maintenance.