Quick view Honeywell Analytics Honeywell SPM Flex Unit & Chemcassette Tapes Compare $11,279.00 Description Specifications Resource Information The SPM Flex, the next evolution of our SPM and TLD gas Detectors with Chemcassette tape technology, is capable of working as both a fixed and a portable unit. The monitor detects theultrasensitive... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List