Traceable Platinum High-Accuracy Thermometers display the minimum/maximum temperatures for last 24 hours (for each hour) and last 7-days (for each day); or for last 30 days (for each day). The time/date stamp key shows the exact time and date for all minimum and maximum readings. A 4-wire platinum sensor version ensures linear response and high accuracy across the entire range while the sealed bottle probe version is insulted from rapid temperature changes when door is opened.

The triple-display shows maximum, minimum, and current temperatures. Alarm feature is settable at 0.1° increments and singles when temperature rises above/falls below set points. The visual LEDs and audible alarm signals continuously even if temperature returns to non-alarm range. Cable is waterproof, 120” and micro-thin to allow refrigerator or freezer door to close and tightly seal.

Key Features

• Minimum/maximum readings for last 24-hours, 7-days, 31-days
• Time/date stamp shows exact time and date for all min/max readings
• Temperature-buffered high-accuracy platinum probe
• Permits easy on-key calibration by user
• Visual LED blinks and audible alarm signals continuously
• Traceable: To assure accuracy an individually serial-numbered Traceable Certificate is provided from an ISO 17025 calibration laboratory accredited by A2LA
• 3517-62 and CTL6409 are ideal for refrigeration/freezer applications
• 3517-63 and CTL6411 are ideal for Ultra-low freezer applications

Supplied: batteries, probe, cable, magnetic strips, Velcro® tape, bench stand, Traceable® Certificate