Records produced by these temperature chart recorders serve as corroborating evidence for insurance claims, quality assurance documentation and protection of your valuable products. Available models from 5-Day to 90-Day transit periods with three temperature ranges.DeltaTrak's In-Transit Temperature Chart Recorder, Model 16000-16502, is a highly reliable, time and temperature strip chart recorder record environmental conditions during storage and transportation of food, pharmaceuticals, chemicals, and other temp-sensitive commodities in refrigerated trucks, rail cars, ocean/air freight. Temperature Range Standard Model: -20F to 100F (-29C to 38C) High Range Model: 32F to 150F (0C to 65C) Low Range Model: -40F to 80F (-40C to 27C) Accuracy 2F (1C) or better Sensor Bi-metal coil Chart Pressure sensitive, total length 36 inches (91.4cm), dual scale F/C Case Lot Size/Weight 20 recorders per case/11lbs. (4.9kg) Cert/calibration CE mark by T.U.V., traceable to N.I.S.T.