This H-B Instrument® DURAC® incubator thermometer has a temperature range of 20 to 100°C. Individually serialized and designed with a swell in the stem to hold the thermometer in place. Non-calibrated thermometer has arrows at 25, 30, 37 and 56°C. Individually packaged in recyclable Safety-Pak® packaging with a non-roll fitting. Range: 20 to 100°C. Divisions: 1°. Length: 305mm. Immersion length: 76mm (3inches). Accuracy: 1°C. Thermometer Fill Type: Organic. Swell: Yes. Glass Type: White Back. Arrows: 25, 30, 37, 56°C. Traceable to NIST: No. Traceable to DKD/PTB: No. PTFE safety coated: No. 10/Case. H-B Instrument #: 6/0010.