--- product_id: 3537656 title: "445814" brand: "extech instruments" price: "NT$3929" currency: TWD in_stock: true category: "Extech" url: https://www.desertcart.tw/products/3537656-445814 store_origin: TW region: Taiwan --- # Humidity 10-99% RH Programmable audible humidity alert Temp range -10 to 60°C 445814 **Brand:** extech instruments **Price:** NT$3929 **Availability:** ✅ In Stock ## Summary > 🌿 Stay ahead of the curve with real-time humidity alerts — because comfort is a power move. ## Quick Answers - **What is this?** 445814 by extech instruments - **How much does it cost?** NT$3929 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/3537656-445814) ## Best For - extech instruments enthusiasts ## Why This Product - Trusted extech instruments brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-in-One Display:** Large LCD shows temperature, humidity, and dew point simultaneously for quick, confident monitoring. - • **Long-Lasting & Reliable:** Battery-powered with included AAA batteries ensures continuous performance without frequent replacements. - • **Precision Climate Control:** Accurate ±1°C temperature & ±4% humidity readings keep your environment perfectly balanced. - • **Versatile Mounting Options:** Includes built-in stand and wall bracket for seamless placement in any professional or home setting. - • **Instant Alerts, Zero Guesswork:** Customizable audible and visual alarms notify you the moment humidity crosses your set threshold. ## Overview The Extech 445814 Stationary Hygro Thermometer Psychrometer delivers precise temperature (-10 to 60°C) and humidity (10-99% RH) monitoring with ±1°C and ±4% accuracy. Featuring a large LCD that displays temperature, humidity, and dew point simultaneously, it includes programmable audible and visual alarms to alert you when humidity exceeds preset limits. Designed for professional and home use, it comes with a built-in stand, wall bracket, and included AAA batteries for reliable, continuous operation. ## Description The Extech 445814 is a professional-grade environmental monitor designed to provide total control over your indoor climate. Perfect for homeowners, lab technicians, and facility managers, this Humidity Alert Hygro-Thermometer goes beyond basic sensors by offering a specialized Dew Point calculation. By understanding the relationship between temperature and moisture, you can proactively manage environments to prevent wood rot, rust, or the dangerous onset of mold. The standout feature of the 445814 is its fully programmable alarm system. When humidity levels exceed or drop below your designated set points, the device triggers a loud audible buzzer and a flashing visual LED, ensuring you never miss a critical change in air quality. The large, high-contrast display shows temperature in either Celsius or Fahrenheit, while the Min/Max function keeps a historical record of environmental extremes. Built for long-term reliability and housed in a durable casing, the Extech 445814 is the ultimate diagnostic tool for maintaining optimal conditions in wine cellars, server rooms, greenhouses, and industrial storage facilities. ## Features - ADVANCED HUMIDITY ALERT SYSTEM: Take the guesswork out of climate control with programmable visual and audible alarms. Set your custom high or low humidity limits and receive instant alerts to prevent mold growth or protect sensitive equipment. - COMPREHENSIVE DEW POINT CALCULATION: Gain a deeper understanding of your environment by monitoring dew point alongside temperature and humidity. This essential metric helps you predict condensation and manage moisture levels with expert precision. - CRYSTAL CLEAR DUAL DISPLAY: View all critical data at once on the large, easy-to-read LCD screen. The simultaneous display of temperature and humidity ensures you have a complete snapshot of your indoor climate without ever pressing a button. - INTELLIGENT DATA TRACKING: Capture and recall the highest and lowest readings with the integrated Min/Max memory function. This allows you to monitor environmental fluctuations over time and identify problematic trends in your home or workspace. - VERSATILE MOUNTING OPTIONS: Adapt the monitor to any space using the built-in tilt stand for desktop use or the integrated wall mount. Whether in a laboratory, greenhouse, or basement, this rugged device provides reliable monitoring where it matters. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BF0ZTU | | Battery Description | Battery operated (battery type and number not specified) | | Best Sellers Rank | #581,627 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #61 in Humidifier Humidity Meters #814 in Humidifier Accessories | | Brand Name | Extech Instruments | | Color | Green | | Customer Reviews | 4.1 4.1 out of 5 stars (60) | | Global Trade Identification Number | 00793950458143 | | Included Components | Meter, Probe, Batt | | Item Dimensions W x H | 5.5"W x 1"H | | Item Weight | 0.38 Pounds | | LowerTemperature Range | 5 Degrees Celsius | | Manufacturer | Extech | | Model | 445814 | | Mounting Type | Wall Mount | | Operating Humidity | 10-99% | | Part Number | 445814 | | Smart Home Compatibility | Not Smart Home Compatible | | Temperature Accuracy | ±0.4°C from -10 to 50°C and ±0.6°C from 50 to 80°C | | Temperature Reading Accuracy | plus_minus_0_point_5_degrees_celsius | | UPC | 785533667073 793950458143 | | Upper Temperature Range | 80 Degrees Celsius | | Voltage | 1.5 Volts (DC) | | Warranty Description | 1 Year | ## Product Details - **Battery Description:** Battery operated (battery type and number not specified) - **Brand:** Extech Instruments - **Color:** Green - **Item Weight:** 0.38 Pounds - **Product Dimensions:** 5.5"W x 1"H ## Images ![445814 - Image 1](https://m.media-amazon.com/images/I/61sEM1xZ7qL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Frequently Bought Together - EXTECH Instruments Digit Thermometer - Extech 445713 Big Digit Indoor/Outdoor Hygro-Thermometer - Extech RHM15 Mini Temp and RH Indicator --- ## 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.tw/products/3537656-445814](https://www.desertcart.tw/products/3537656-445814) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-05-11*