[
{"codes":["A"],"description":"Aspirated (Assmann type)"},
{"codes":["S"],"description":"Screen (not ventilated)"},
{"codes":["HH"],"description":"Hand-held digital thermometer \/ humidity sensor"},
{"codes":["RS"],"description":"Radiation shield (e.g. cylindrical \/ Gill multi-plate)"},
{"codes":["SG"],"description":"Ship's Sling"},
{"codes":["SL"],"description":"Sling"},
{"codes":["SN"],"description":"Ship's screen"},
{"codes":["US"],"description":"Unscreened"},
{"codes":["VS"],"description":"Screen (ventilated)"},
{"codes":["W"],"description":"Whirling"}
]