Intoxometer PBT Alco Sensor FST. Lot of 5. (5) Serial Numbers 35312, 35309, 63285, 79111, 63471. PBT used on patrol, items have scratches and scuff marks. All come with hard black plastic cases which may not secure properly. Unknown if items of functioning properly (Police/Fire Only- requires authorization on Police/Fire Department letter head for purchase.)