Read Before You Buy it Dear Customer,Our Freeshipping is "Seller's Shipping Method",Tracking number will be like "11457891274"or " UA718628210YP" ,this tracking number only can be tracked before it arrive the airport , and have no tracking information in your country.Do not choose this shipping method if you don't like the regular mail. Please choose "China Post Air mail" if you need international tracking number like this "RI254747030CN",This number can provide a full tracking information when you buy ,please leave a meage and let us know you need Pt100 or Pt1000 . Precision Pt100 RTD three lugs Diameter of 4 mm, length 30 mm , stainle steel , high-temperature lead 300 mm Nominal Resistance R0 Tolerance DIN EN 60751 1996-07 Tolerance DIN EN 60751 2009-05 100 Ohm at 0 Cla C F 0.1 Cla A F 0.15 Cla B F 0.3 Cla 2B F 0.5 1000 Ohm at 0 Cla C F 0.1 Cla A F 0.15 Cla B F 0.3 Cla 2B F 0.5 Sensor chip technology parameters The measuring point for the nominal resistance is defined at 8mm from the end of the sensor body. Temperature range: -70 to +500 (continuous operation)(temporary use to 550poible) Tolerance Cla B/2B: -70 to +500 Tolerance Cla A: -50 to +300 Tolerance Cla C: 0 to +150 Temperature coefficient: TC = 3850 ppm/K Vibration resistance: At least 40g acceleration at 10 to 2000 Hz, depends on installation Shock resistance: At least 100g acceleration with 8ms half sine wave, depends on installation Environmental conditions: Unhoused for dry environments only Insulation resistance: 100 M at 20; 2 M at 500 Self heating : 0.6 K/mW at 0 Response time : Water current (v= 0.4m/s): t0.5 = 0.04s t0.9 = 0.12s Air stream (v= 2m/s): t0.5 = 2.2s t0.9 = 7.0s Measuring current : 100: 0.3 to 1.0 mA 1000: 0.1 to 0.3 mA (self heating has to be considered)