The ChefAlarm is a professional cooking thermometer and count up/down timer with interchangeable NTC thermistor probes. temperature reading in five seconds with mini needle probe includes backlight amp; calibration function designed for commercial kitchens adjustable 92dB audible alarm The ChefAlarm is a professional cooking thermometer and count up/down timer which displays the countdown/up time, current temperature and simultaneously displays both the high/low alarms and max/min temperatures. The timer is fully programmable, allowing the user to set the count up/down time to/from 99 hours, and 59 minutes. The unit incorporates a large, easy to read LCD display with user selectable backlight and a loud audible alarm with adjustable volume to 92dB - ideal for busy professional kitchens. The ChefAlarm also includes a calibration function allowing the user to fine-tune the accuracy of the thermometer (±2.2 °C). The unit is housed in a water resistant casing and is designed to either sit on a worktop or attach to an appliance using the magnetic pads at the rear of the instrument. Available in two colours, each ChefAlarm is supplied in a padded zip wallet complete with a penetration probe (810-071). Click the Probes or accessories tab above for probe specification. range: -50 to 300°C resolution: 0.1 °C/°F accuracy: ±1°C (-20 to 120°C), ±2°C between –50 to -20 and 120 to 200°C, ±3°C between 200 to 300°C battery: 2 x 1.5 volt AAA battery life: 5000 hours alarm volume: 92bB sensor type: thermistor display: custom LCD dimensions: 19 x 70 x 152mm weight: 165 grams case material: ABS plastic guarantee: one year water/dust resistance: water resistant measurement scale: Celsius/Fahrenheit timer: count up amp; count down