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🌡️ Pocket power for pro-level air insight — never miss a beat in your environment!
The Extech 445580 is a compact, professional-grade humidity and temperature pen featuring a fast-response sensor and dual LCD display for simultaneous readings. Its min/max memory function tracks environmental fluctuations, making it ideal for HVAC, labs, storage, and indoor air quality monitoring. Lightweight and pocket-sized, it delivers reliable, on-the-spot measurements with ±1.8°C accuracy, empowering professionals to maintain optimal conditions anytime, anywhere.



























| ASIN | B00023RVR0 |
| Battery Description | Alkaline |
| Best Sellers Rank | #198,364 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #27 in Humidifier Humidity Meters #169 in Humidifier Accessories |
| Brand Name | Extech |
| Color | green |
| Customer Reviews | 4.6 4.6 out of 5 stars (240) |
| Global Trade Identification Number | 00793950455807 |
| Included Components | 445580, pocket clip, 2023 button battery |
| Item Dimensions W x H | 1.2"W x 1"H |
| Item Weight | 0.07 kg |
| LowerTemperature Range | 14 °F |
| Manufacturer | Extech |
| Model | 445580 |
| Mounting Type | Tabletop |
| Number of Items | 1 |
| Operating Humidity | 5% - 95% relative humidity |
| Part Number | 445580 |
| Temperature Accuracy | 1 degree Celsius |
| Temperature Reading Accuracy | plus_minus_1_point_8_degrees_celsius |
| UPC | 793950455807 013227082940 799891859544 885117593696 705554395052 013161017268 |
| Unit Count | 1 Count |
| Upper Temperature Range | 122 °F |
| Voltage | 3 volts |
| Warranty Description | 1 year |
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