Waterproof Lollipop Thermometer - Traceable Rapid response—provides reading in 2 seconds Includes NIST-Traceable certificate Water-resistant, IP64, case allows dependable readings—even in wet environments Quickly recall Min/Max readings and switch between °F/°C with the press of a button Read in any position and lighting condition—backlit display can be rotated up to 180° Min -58 °F to max 482°F/-50°C to max 250°C. Resolution 0.1°. Accuracy +/-0.5°C from -20 to 200°C, +/-1° otherwise. Choose between an integrated or 9-ft (2.7 m) cabled sensor These digital thermometers provide quick results—in two seconds, readings will be within one degree of the actual temperature and are updated every second. Ideal for baths, incubators, or tanks—units are waterproof and shockproof. Features also include an on/off switch, back-lit display, 180°display rotation, and battery-status indicator.The durable stainless-steel probe has a pointed tip for use in air/gas, liquids, and solids/semi-solids. Model 6420 features a 5-in (12.7 cm) long probe on a 9-ft (2.7m) cable.Traceable® Products have an individually-numbered Traceable® Certificate provided with each unit. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement.