pocket thermometer: ss case ; bimetal coil is from US; high accuracy; pocket thermometer:standard:ASME B40.200-2008dial size:1-3/4",lens:glass,stem:5mm~12.7mm,stem length:20", customer request available;temperature range:0~200F,accuracy:+/-1.5-1-1.5%,waterproof:IP65,installation:back connection,thread:brass,SS316,SS304