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Thermometer has four unique alarm configurations: alarm triggers when temperature is higher than set point, lower than set point, outside of high and low set points, or inside of high and low set points. This allows precise monitoring of any appliance (water bath, incubator, refrigerator), or experiment. Green/red lights blink and alarm sounds when out-of-range condition is detected. Continuous alarm sounds every minute for 5 seconds until the temperature returns to non-alarm condition or until alarm is turned off. Controls on front panel Temperature range is –58.0 to 158.0°F or –50.0 to 70.0°C with a resolution of 0.1° and an accuracy of ±1°C. One-half-inch-high digits are readable from 10 feet. Front panel controls make it easy to set. Traceable to NIST for accuracy 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). Durable design High-impact, chemical-resistant ABS plastic case is 3 x 3 x 1/2 inches. Sensor dimensions are 0.2 inch diameter by 5/8-inch length. Cable is 3 feet long. Weight is 2-1/4 ounces. Supplied with a removable suction cup, flip-open lab bench stand, self-adhesive wall mount, Traceable® Certificate, and battery. Replacement battery Cat. No. 1105.