Extech 445580-NIST Mini Hygro-Thermometer 14 to 122°F

The Extech 445580-NIST Mini Digital Hygro-Thermometer is a compact, pen-style instrument designed for quick and accurate field readings of both humidity and temperature. Its user-friendly design, paired with dependable performance, makes it ideal for professionals across various industries including HVAC, agriculture, and environmental monitoring.

This dual-function meter simultaneously displays temperature in °F or °C and relative humidity, enabling efficient assessments of environmental conditions. It includes a built-in memory for recalling minimum and maximum readings, and a data hold function to capture fluctuating values. The unit operates on a long-lasting 3V lithium battery and comes with a handy pocket clip for portability.

Engineered for durability and reliability, this hygro-thermometer also supports on-site calibration using optional humidity calibration bottles, enhancing its long-term accuracy. NIST certification is included for traceable measurement standards, ensuring confidence in professional-grade results.

What's Included:

• 1 - NIST Certificate of Calibration
• 1 - Pocket Clip
• 1 - 3V Lithium Battery

Features

Compact and Portable Design
Easily fits in your pocket or tool bag, making it convenient for field inspections and mobile applications.

Simultaneous Humidity and Temperature Display
Shows °F or °C along with relative humidity in real time for efficient readings.

Field Calibration Capability
Supports self-calibration with optional RH calibration bottles to maintain measurement accuracy.

Memory and Data Hold Functions
Stores minimum and maximum values and allows freezing of display for reviewing rapid fluctuations.

Reliable Power Supply
Powered by a long-lasting 3V lithium battery for extended use without frequent replacements.

NIST Certified
Comes with a NIST Certificate of Calibration to ensure traceability and compliance in regulated environments.

What's Included

Included with Your Purchase:

• 1 - NIST Certificate of Calibration
• 1 - Pocket Clip
• 1 - 3V Lithium Battery

Specifications

• Temperature Range: 14°F to 122°F (-10°C to 50°C)
• Humidity Range: 10% to 90% RH
• Display: Simultaneous temperature and humidity
• Power: 3V lithium battery
• Functions: Min/Max memory, data hold
• Certification: NIST Certificate included
• UPC: 793950456804
• Condition: NEW
• Model Number: 445580-NIST

FAQ

Q: Can I calibrate the device in the field?
A: Yes, it features a self-calibration utility compatible with optional RH calibration bottles.

Q: What kind of battery does it use?
A: It runs on a 3V lithium battery, included with the unit.

Q: Does it include a certificate for compliance?
A: Yes, it comes with a NIST Certificate of Calibration.

Q: What temperature and humidity range does it support?
A: It measures temperatures from 14°F to 122°F and humidity from 10% to 90% RH.

Resources

Documents:

• Extech 445580 Datasheet
• Extech 445580 Manual