This DURAC® Plus™ window plastic case pocket thermometer has a range of -30 to 120°F and offers convenience and portability. This total immersion thermometer is 160mm (6.3in)in length. Features blue organic liquid against white back glass. Comes with a Statement of Accuracy indicating accuracy traceable to NIST. Each thermometer is tested and calibrated in H-B Instrument's exclusive triple accredited/registered ISO/IEC 17025:2005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST. Individually serialized. Ideal for ffieldstudies, waste water treatment and any “on-the-go” applications. individually packaged in Safety-Pak™ packaging to prevent breakage. Thermometer Fill Type: Blue Organic. Glass Back: White. Range: -30 to 120°F. Divisions: 2. Accuracy: 2°F.