6x Honeywell Analytics Neotronics Impact unit 2302B1LFB5BE Gas Detectors w/ Case All units power on, each show different prompts i.e. cartridge expired, calibration overdue, memory error (see images) x6 units with all and no other accessories as shown in images. Size (with case): 415 cm x 330 cm x 180 cm For any questions, you may contact us via the eBay messaging system. ---