---
product_id: 8170795
title: "Extech CTH10 Radio-Controlled Wall Clock Hygro-Thermometer"
brand: "extech"
price: "S$0"
currency: SGD
in_stock: false
reviews_count: 6
url: https://www.desertcart.sg/products/8170795-extech-cth10-radio-controlled-wall-clock-hygro-thermometer
store_origin: SG
region: Singapore
---

# NIST Sync 4.3" Display Temp & Humidity Extech CTH10 Radio-Controlled Wall Clock Hygro-Thermometer

**Brand:** extech
**Price:** S$0
**Availability:** ❌ Out of Stock

## Summary

> ⏰ Time to Upgrade Your Wall Game!

## Quick Answers

- **What is this?** Extech CTH10 Radio-Controlled Wall Clock Hygro-Thermometer by extech
- **How much does it cost?** S$0 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/8170795-extech-cth10-radio-controlled-wall-clock-hygro-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

- • **All-in-One Display:** View time, date, temperature, and humidity at a glance.
- • **Sleek Modern Design:** Elevate your space with a stylish, wall-mounted clock.
- • **User-Friendly Setup:** Batteries included for hassle-free installation.
- • **Smart DST Adjustment:** Automatically adjusts for Daylight Saving Time.
- • **Precision Timekeeping:** Stay in sync with NIST radio signals for ultimate accuracy.

## Overview

The Extech CTH10 Radio-Controlled Wall Clock Hygro-Thermometer features a super large 4.3-inch digital display that automatically syncs with NIST radio signals, ensuring precise timekeeping. It showcases time, date, temperature, and humidity, all in a sleek, modern design perfect for any professional space.

## Description

View larger View largerRadio Controlled Wall Clock Hygro-Thermometer with AlarmReceives Time Code from NIST Radio Station WWVB (North American region) and automatically adjusts year, date, day, hour, minute, second, and DST. A large LCD displays time, RH percent, temperature, year, month, date, and day.Additional FeaturesThe super large 4.3-inch (109mm) digit clock display can be viewed from a distance. A signal indicator displays radio signal strength in 3 levels to indicate successful synchronization. The clock automatically adjusts for daylight savings time (DST). The Hygro-Thermometer measures temperature from 23 to 122 degrees F (-5 to 50 degrees C) and Humidity from 20 to 90 percent RH with accuracies of ±2 degrees F, ±1 degrees C and ±6 percent RH. Additional features include: Alarm Clock function, switchable degrees F/ degrees C, and a built-in stand for desktop use (clock may also be wall mounted).What's in the BoxComes with four AA batteries and user guide.

## Features

- Super large 4.3-Inch (109mm) digit clock display
- Receives time code from NIST radio station WWVB
- Automatically adjusts year, date, day, hour, minute, second, and DST
- Large LCD displays Time, RH-percent, temperature, year, month, date, and day

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Extech |
| Display Type | Digital |
| Style | Modern |
| Power Source | Battery Powered |
| Age Range (Description) | Adult |
| Shape | Rectangular |
| Are Batteries Included | Yes |
| Mounting Type | Wall Mount |
| Item Weight | 0.02 Kilograms |
| Number of Batteries | 2 Lithium Ion batteries required. (included) |
| Alarm Clock | Yes |
| Number of Items | 1 |
| Operation Mode | Electrical |
| Manufacturer | Extech |
| Part Number | 1218L48EA |
| Item Weight | 0.704 ounces |
| Product Dimensions | 16.75 x 1.25 x 11.5 inches |
| Item model number | CTH10 |
| Batteries | 2 Lithium Ion batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Warranty Description | 1 year. |

## Images

![Extech CTH10 Radio-Controlled Wall Clock Hygro-Thermometer - Image 1](https://m.media-amazon.com/images/I/71cQS61v+TL.jpg)
![Extech CTH10 Radio-Controlled Wall Clock Hygro-Thermometer - Image 2](https://m.media-amazon.com/images/I/71T-g6JcFoL.jpg)

## Customer Reviews

### ⭐ 1.0 out of 5 stars







  
  
    Sadly - Avoid Extech -
  

*by O***C on Reviewed in the United States on April 20, 2020*

I have purchased 3 of these clocks over the last year because of the large display-Problem is the clocks have NEVER held the proper time for any length of time and have been a big disappointment -Just bought a similar click from Quigo - and  now I have a great clock  - that actually works -

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Nice clock
  

*by M***. on Reviewed in the United States on February 27, 2016*

We have 6 of these at our workout facility and they perform well.  Nice large display that can be seen at any distance or angle.  The second count is an added plus!

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Biggest
  

*by K***N on Reviewed in the United States on October 3, 2013*

biggest digital clock you can probably buy that has a temp and humidity display. Which was important to me, I needed a humidity reading for work.-1 star becauseit's a stupid atomic- radio controlled clock. Once a week the time would be way off, forcing me to manually correct it, only to have it be off again in a few days. I have since found that if you open the back of it, locate the antenna (bottom left or right I forget) cut the wire, it will no longer try to adjust the time.also high pricealso made in china

---

## 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.sg/products/8170795-extech-cth10-radio-controlled-wall-clock-hygro-thermometer](https://www.desertcart.sg/products/8170795-extech-cth10-radio-controlled-wall-clock-hygro-thermometer)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-22*