Unlike other electronic detector testing systems, the Solo 365 does not require manufacturer refurbishment or servicing when any single component breaks, as the high-use parts are available for replacement by the user. The field service pack contains all user-replaceable components for the Solo 365 smoke detector test head, allowing engineers to carry spares everywhere they go to almost completely eliminate downtime due to damaged or worn-out equipment. Containing a cup and membrane, smoke generator module, and a battery, this kit includes almost everything needed to keep a Solo 365 in working order. Designed for use only with Solo 365 equipment Easy to install, field-replaceable design – no service requirement Test more detectors in less time by carrying spares instead of going back to the van The field service pack contains: 1x Cup & Membrane 1x Smoke Generator 1x Lithium Ion Battery Pack Small, lightweight component designs make carrying spares far easier Reduced downtime due to damaged equipment Please note: ES3 smoke cartridges and the universal charging kit are not included in this pack.