--- product_id: 2175292 title: "Extech 445580 Humidity and Temperature Pen, Fast Sensor, Dual LCD | Fast-response sensor, MIN/MAX memory, pocket hygrometer, HVAC/labs/storage, indoor air monitoring" brand: "extech" price: "A$180" currency: AUD in_stock: true url: https://www.desertcart.com.au/products/2175292-extech-445580-humidity-and-temperature-pen-fast-sensor-dual-lcd store_origin: AU region: Australia --- # Fast-response sensor Dual LCD display Compact pen-style design Extech 445580 Humidity and Temperature Pen, Fast Sensor, Dual LCD | Fast-response sensor, MIN/MAX memory, pocket hygrometer, HVAC/labs/storage, indoor air monitoring **Brand:** extech **Price:** A$180 **Availability:** ✅ In Stock ## Summary > 🌡️ Stay ahead of the curve with instant, professional-grade humidity & temperature insights! ## Quick Answers - **What is this?** Extech 445580 Humidity and Temperature Pen, Fast Sensor, Dual LCD | Fast-response sensor, MIN/MAX memory, pocket hygrometer, HVAC/labs/storage, indoor air monitoring by extech - **How much does it cost?** A$180 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/2175292-extech-445580-humidity-and-temperature-pen-fast-sensor-dual-lcd) ## Best For - extech enthusiasts ## Why This Product - Trusted extech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Pro Use:** Engineered for HVAC pros, lab techs, and facility managers demanding reliable air quality control 🏢 - • **Dual Display Clarity:** Simultaneously monitor both metrics on a crisp, easy-to-read dual LCD 📏 - • **Trend Tracking Memory:** Built-in MIN/MAX memory captures environmental highs and lows for smarter insights 📊 - • **Pocket-Sized Portability:** Sleek pen design fits effortlessly in your pocket or tool kit for on-the-go checks 🧳 - • **Instant Precision Readings:** Get humidity & temperature data in a flash with a lightning-fast sensor ⚡ ## Overview The Extech 445580 Humidity and Temperature Pen is a compact, pocket-friendly meter delivering fast, accurate dual readings on a bright LCD. Designed for professionals in HVAC, labs, and storage management, it features a responsive sensor and MIN/MAX memory to track environmental trends, ensuring precise indoor air quality and temperature monitoring wherever you go. ## Description The Extech 445580 Humidity/Temperature Pen is a compact, high-precision tool designed for fast and reliable indoor environmental monitoring. Engineered for HVAC professionals, inspectors, facility managers, and lab technicians, this pocket-sized meter provides instant readings of both humidity and temperature on a clear dual LCD display. Its responsive sensor ensures accurate real-time results, while the built-in min/max memory helps track fluctuations and verify long-term conditions. Lightweight and easy to carry, the 445580 is ideal for air quality assessments, comfort studies, storage verification, greenhouse monitoring, and workplace inspections. Whether you're validating HVAC performance or ensuring proper environmental control for sensitive materials, this dependable meter delivers professional-grade results in a portable, user-friendly design. ## Features - FAST HUMIDITY AND TEMPERATURE READINGS – Get quick, reliable measurements with a responsive sensor designed for on-the-spot indoor monitoring, making it perfect for HVAC checks, lab work, storage audits, and facility inspections. - COMPACT AND TRAVEL-READY DESIGN – Slim, pen-style housing fits easily in a pocket, tool pouch, or bag, giving technicians and inspectors a convenient, portable meter they can carry anywhere for instant environmental checks. - CLEAR DUAL LCD DISPLAY – Features a bright, easy-to-read dual display showing humidity and temperature at the same time, helping users confirm environmental conditions instantly without switching modes or wasting time. - MIN/MAX MEMORY FUNCTION – Tracks minimum and maximum humidity and temperature levels, allowing you to identify trends, troubleshoot indoor air issues, and verify conditions over time during inspections or monitoring routines. - IDEAL FOR AIR QUALITY AND STORAGE CONTROL – Perfect for maintaining proper environmental conditions in offices, greenhouses, labs, warehouses, and sensitive storage areas where stable humidity and temperature are crucial. ## Technical Specifications | Specification | Value | |---------------|-------| | 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 | ## Product Details - **Battery Description:** Alkaline - **Brand:** Extech - **Color:** green - **Item Weight:** 0.07 kg - **Product Dimensions:** 1.2"W x 1"H ## Images ![Extech 445580 Humidity and Temperature Pen, Fast Sensor, Dual LCD | Fast-response sensor, MIN/MAX memory, pocket hygrometer, HVAC/labs/storage, indoor air monitoring - Image 1](https://m.media-amazon.com/images/I/71IN4BwC-6L.jpg) ![Extech 445580 Humidity and Temperature Pen, Fast Sensor, Dual LCD | Fast-response sensor, MIN/MAX memory, pocket hygrometer, HVAC/labs/storage, indoor air monitoring - Image 2](https://m.media-amazon.com/images/I/71SrfOT4HEL.jpg) ![Extech 445580 Humidity and Temperature Pen, Fast Sensor, Dual LCD | Fast-response sensor, MIN/MAX memory, pocket hygrometer, HVAC/labs/storage, indoor air monitoring - Image 3](https://m.media-amazon.com/images/I/91-uXjGyVVL.jpg) ![Extech 445580 Humidity and Temperature Pen, Fast Sensor, Dual LCD | Fast-response sensor, MIN/MAX memory, pocket hygrometer, HVAC/labs/storage, indoor air monitoring - Image 4](https://m.media-amazon.com/images/I/71MeOXoBFjL.jpg) ![Extech 445580 Humidity and Temperature Pen, Fast Sensor, Dual LCD | Fast-response sensor, MIN/MAX memory, pocket hygrometer, HVAC/labs/storage, indoor air monitoring - Image 5](https://m.media-amazon.com/images/I/61FMqReX82L.jpg) ## Frequently Bought Together - Extech 445580 Humidity and Temperature Pen Sized Meter with Pocket Clip - Protimeter BLD5365 Surveymaster Moisture Meter - FLIR C5 Compact Thermal Imaging Camera with WiFi: High Resolution Infrared Imager for Inspection, Electrical/Mechanical, Building, and HVAC Applications --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.au/products/2175292-extech-445580-humidity-and-temperature-pen-fast-sensor-dual-lcd](https://www.desertcart.com.au/products/2175292-extech-445580-humidity-and-temperature-pen-fast-sensor-dual-lcd) --- *Product available on Desertcart Australia* *Store origin: AU* *Last updated: 2026-08-13*