WELL2536: Perkin-Elmer, PE AD-6 Micro-autobalance Perkin-Elmer AD-6 Autobalance with Weighting unit. Model: C655-0000, 115......   WELL2535: Perkin-Elmer, PE AD-4 Micro-autobalance Perkin-Elmer AD-4 Autobalance with Weighting unit. Model: C655-0001, 115......   WELL2277: Perkin Elmer AD-6 Ultra Microblance a Computerized microbalance, System control Panel Built-in(Features: rang......   WELL2276: CANN C-30 Automatic Micro-Balance Model: C-30, Range, Cal., Brake, Tare. s/n:75415, 110/120V, Good Working......   WELL2275: CANN C-29 Automatic Micro-Balance Model:C-29, Automatic Electro-Balance. Range, Cal., Tare. s/n: 40526, 11......