Control Traceable 6424 Wireless Radio-Signal Refrigerator Thermometer with Remote Refrigerator Bottle Probe Module, -30.0°C to 70.0°C (-22.0°F to 158.0°F) Range

Unit wirelessly reads refrigerator temperatures from up to 100 feet away. Temperature readings from up to three remote refrigerator sensors are sent to a main unit via radio signal (frequency of 433 MHz, penetrates refrigerators and walls). Sealed GRAS bottle is insulated from rapid temperature changes when refrigerator door is opened. GRAS—generally recognized as safe by US Food and Drug Administration. Data is updated every 30 seconds. Minimum/Maximum memory allows monitoring conditions over short or long time periods. Distinctive alarm sounds when temperature rises above/falls below high and low set points. Alarms may be conveniently set in 1° increments. Indicator on main unit shows rising/falling temperature trends. Traceable: To assure accuracy an individually serial-numbered Traceable Certificate is provided from our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology).