RS Pro Digital Pocket Thermometer RS40 RS Pro RS40 is a great value, compact digital thermometer. The digital hand held thermometer is suitable for environmental test and measurement. These digital thermometers have an easy to read LCD display and optional measurement preference. Our unique range of hand held thermometers offer you the choice of calibration types and temperature measuring preference to suit your needs at affordable prices. Features and Benefits • Temperature Range: -50°C to +200°C (-58°F to +392°F) • Accuracy: ± 2°C (± 4°F) • Resolution: 0.1° • Measurement Rate: 1 time per second • Auto Power Off: 10 minutes • HI/Low Temperature Alarm • Low Battery Indication • Alarm Temperature Range: -40°C to +200°C (-40°F to +392°F) • Shut down the alarm by pressing any button Button Indication (AL UP): HI/Low Temperature Alarm Switch (HI SET): High Temperature Alarm Setting (LO SET): Low Temperature Alarm Setting (MAX/MIN): Max/Min Reading Handheld Pocket Temperature Indicators