---
product_id: 6820277
title: "445702 Hygro-Thermometer Clock - Digital Humidity Monitor and Indoor Thermometer with Max/Min Memory, Triple LCD Display, 12/24 Hour Clock, and Alarm - Wall Mount or Desktop Stand"
brand: "extech"
price: "$103.50"
currency: USD
in_stock: true
reviews_count: 13
category: "Extech"
url: https://www.desertcart.us/products/6820277-445702-hygro-thermometer-clock-digital-humidity-monitor-and-indoor-thermometer
store_origin: US
region: United States of America
---

# Triple simultaneous LCD display Max/Min memory tracking Wall mount & desktop stand included 445702 Hygro-Thermometer Clock - Digital Humidity Monitor and Indoor Thermometer with Max/Min Memory, Triple LCD Display, 12/24 Hour Clock, and Alarm - Wall Mount or Desktop Stand

**Brand:** extech
**Price:** $103.50
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay ahead of the curve with real-time climate clarity!

## Quick Answers

- **What is this?** 445702 Hygro-Thermometer Clock - Digital Humidity Monitor and Indoor Thermometer with Max/Min Memory, Triple LCD Display, 12/24 Hour Clock, and Alarm - Wall Mount or Desktop Stand by extech
- **How much does it cost?** $103.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/6820277-445702-hygro-thermometer-clock-digital-humidity-monitor-and-indoor-thermometer)

## 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

- • **Plug-and-Play Precision:** Comes complete with battery and mounting hardware for instant setup and reliable readings.
- • **Seamless Time Management:** Programmable 12/24-hour alarm keeps your schedule on point while monitoring your environment.
- • **Data-Driven Climate Control:** Max/Min memory logs fluctuations so you never miss critical changes.
- • **Versatile Placement Options:** Sleek design with wall mount or tilt stand adapts to any professional or home setting.
- • **All-in-One Environmental Dashboard:** See time, temperature, and humidity at a glance—no toggling needed.

## Overview

The Extech 445702 Hygro-Thermometer Clock is a professional-grade indoor environmental monitor featuring a triple LCD display for simultaneous time, temperature, and humidity readings. It includes Max/Min memory to track environmental extremes, a programmable alarm clock with 12/24-hour formats, and flexible mounting options for wall or desktop use. Designed for precision and convenience, it operates within a wide temperature range (14–140°F) and humidity range (10–85%), making it ideal for labs, greenhouses, nurseries, and home offices. The device comes ready to use with included battery and mounting hardware, ensuring quick setup and reliable performance.

## Description

The Extech 445702 is the ultimate all-in-one environmental monitoring solution for those who refuse to settle for second-guessing their air quality. Designed for versatility, this hygro-thermometer clock provides real-time insights into your indoor climate by simultaneously displaying relative humidity, ambient temperature, and the time on three independent LCD panels. Whether you are maintaining a precise laboratory environment, optimizing growth in a greenhouse, or simply ensuring your home office stays comfortable, the 445702 delivers laboratory-grade reliability in a sleek, user-friendly package. Equipped with a Max/Min memory function, this device acts as a silent sentry, recording the highest and lowest temperature and humidity levels reached since your last reset. This is essential for identifying hidden moisture spikes or heating failures while you are away. Beyond measurement, it functions as a full-featured clock with a programmable alarm, making it a smart replacement for standard desk clocks. With a wide temperature range of 14 to 140°F (-10 to 60°C) and a humidity range of 10 to 85%, the Extech 445702 is built to handle everything from basement moisture tracking to nursery climate control. It comes complete with a built-in tilt stand, a wall-mounting bracket, and the required battery, making it the most efficient way to keep your environment—and your schedule—perfectly in sync.

Review: Extech 445702 Hygro-Thermometer Clock - Digital Humidity-Thermomete works great and is reliable - I really like this little Hygrometer-thermometer-clock. I have one that I bought about 18 years ago and it still works. The case has turned a bit off color and the temperature is about 0.4 degrees F off from my new model but other than it still works. If the new one last just as long I'll be very happy.
Review: It works. - This is a wonderful little device. I have had mine for many years and it gives reliable readings of time, temperature and best of all, relative humidity - one of the few devices in this price range that does.

## Features

- SIMULTANEOUS TRIPLE DISPLAY: View time, temperature, and humidity all at once on a crisp LCD screen. No more toggling between modes—get all your essential environmental data in a single glance for maximum efficiency at home or in the office.
- MAX AND MIN MEMORY: Track environmental fluctuations effortlessly with the integrated memory function. It records the highest and lowest readings since the last reset, helping you identify trends in your greenhouse, lab, or storage area.
- PROGRAMMABLE ALARM CLOCK: Stay on schedule while monitoring your climate. This versatile device features a built-in alarm with 12 or 24-hour time formats, making it a perfect functional addition to your bedside table or professional workspace.
- FLEXIBLE MOUNTING OPTIONS: Adapt to any space with the built-in tilt stand for desktop use or the included wall mounting bracket. Its slim, attractive design ensures it fits perfectly in basements, humidors, nurseries, or industrial settings.
- COMPLETE OUT OF THE BOX: Start monitoring immediately with everything you need included. This professional-grade kit comes with a 1.5V AAA battery and mounting hardware, so you can set up your environmental station in just a few seconds.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000JNR7WW |
| Battery Description | Alkaline |
| Best Sellers Rank | #355,998 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #423 in Humidifier Accessories |
| Brand | Extech |
| Brand Name | Extech |
| Color | White |
| Customer Reviews | 4.4 out of 5 stars 80 Reviews |
| Global Trade Identification Number | 00793950445723 |
| Included Components | Extech 445702 Indicator Relative Humidity/Temperature with Clock |
| Item Weight | 0.11 Kilograms |
| Manufacturer | Extech |
| Model | 445702 |
| Mounting Type | Wall Mount |
| Operating Humidity | 10% to 85% |
| Part Number | 445702 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Temperature Accuracy | plus or minus 1.8 degrees Fahrenheit or plus or minus 1 degree Celsius |
| UPC | 793950445723 785533415650 |
| Unit Count | 1.0 Count |
| Upper Temperature Range | 140 Degrees Fahrenheit |
| Voltage | 1.5 Volts |
| Warranty Description | 1 Year |

## Product Details

- **Battery Description:** Alkaline
- **Brand:** Extech
- **Color:** White
- **Item Weight:** 0.11 Kilograms
- **Mounting Type:** Wall Mount

## Images

![445702 Hygro-Thermometer Clock - Digital Humidity Monitor and Indoor Thermometer with Max/Min Memory, Triple LCD Display, 12/24 Hour Clock, and Alarm - Wall Mount or Desktop Stand - Image 1](https://m.media-amazon.com/images/I/61oxEW6XuJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Extech 445702 Hygro-Thermometer Clock - Digital Humidity-Thermomete works great and is reliable
*by J***N on May 7, 2026*

I really like this little Hygrometer-thermometer-clock. I have one that I bought about 18 years ago and it still works. The case has turned a bit off color and the temperature is about 0.4 degrees F off from my new model but other than it still works. If the new one last just as long I'll be very happy.

### ⭐⭐⭐⭐⭐ It works.
*by G***G on February 21, 2026*

This is a wonderful little device. I have had mine for many years and it gives reliable readings of time, temperature and best of all, relative humidity - one of the few devices in this price range that does.

### ⭐⭐⭐⭐⭐ All the features I need!
*by Y***O on December 30, 2016*

I own another hygrometer by the same company and it worked great! I'm a lash extension technician, monitor the humidity level and temperature in my work space is extremely important for the adhesive we use to work smoothly and properly. Only problem is when getting busy I always have hard times keep track of time. I wanted a hygrometer that not only monitors the humidity level and temperature, but also display time so I'm able to keep everything in control with a glance. Such a device was surprisingly hard to find. I was so happy I found this one, and it's even better it's from a brand that I already know and trust:)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-12*