- Home Page /
- Sports Outdoor & Fitness /
- Fitness & Exercise /
- Fitness Technology /
- Stopwatches /
- Extech STW515 StopwatchClock with Backlit Dis...
0 ratings
Item #:
41143727
Extech STW515 StopwatchClock with Backlit Display
Item #:
41143727
€ 41
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Monday, August 03
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
The EXTECH Instruments HW30 HeatWatch is your ultimate companion for tracking humidity, temperature, and time with precision.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Radio-Controlled Time
Ensure accurate timekeeping with automatic synchronization to radio signals, eliminating the need for manual adjustments and providing a precise, hassle-free experience.
Temperature & Humidity
Monitor your environment effectively with built-in hygro-thermometer functionality, delivering real-time temperature and humidity readings for optimal comfort and health.
Calendar Display
Stay organized and informed with an integrated calendar feature, offering date details and making it easy to track important events and appointments directly from the clock.
Product Details
| Item Weight | 0.2 lbs (90 grams) |
Who Should Buy?
-
Homeowners
Ideal for homeowners wanting accurate time, humidity, and temperature readings for comfort and lifestyle management.
-
Office Use
Perfect for office settings where monitoring indoor climate and time is essential for productivity and comfort.
-
Weather Enthusiasts
Great for individuals who enjoy tracking weather conditions and appreciate precise environmental data in their space.
-
Budget Buyers
Not suitable for those seeking low-cost options as this product may be pricier compared to standard clocks.
Product Description
Extech STW515 StopwatchClock with Backlit Display
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What features does the EXTECH Instruments HW30 offer?
Answer: The EXTECH Instruments HW30 HeatWatch is equipped with advanced features such as simultaneous temperature and humidity measurement, a stopwatch function, and a large LCD display for easy reading. The device excels in providing accurate readings for environmental conditions and is useful for various applications, including agriculture, HVAC, and indoor air quality assessment. Users can rely on the HW30 for precise monitoring of conditions in greenhouses, basements, or even during home inspections. -
Question:
How accurate is the temperature and humidity measurement on the HW30?
Answer: The EXTECH Instruments HW30 is known for its high accuracy, offering temperature readings within ±1.5°F and humidity measurements within ±3%. This level of precision is essential in professional settings where environmental conditions must be monitored closely. For instance, scientists conducting experiments in controlled environments or builders testing moisture levels in materials will find the HW30's accuracy to be crucial for reliable data. -
Question:
Can I use the HW30 for outdoor measurements?
Answer: While the HW30 is primarily designed for indoor use, it can also be used for outdoor measurements as long as it is sheltered from direct sunlight and extreme weather conditions. Utilizing it in shaded or controlled environments allows for accurate readings. This versatility is beneficial for outdoor enthusiasts monitoring temperature and humidity during activities like camping or hiking, ensuring they are prepared for changing weather conditions. -
Question:
What is the battery life of the HW30?
Answer: The HW30 operates on a standard 9V battery, which provides a long battery life under normal usage. Users can expect extended periods of operation without frequent replacements, making it convenient for fieldwork or continuous monitoring. This feature is particularly advantageous for professionals in industries such as agriculture or construction, where prolonged measurements are necessary without interruptions. -
Question:
Is the HW30 portable for travel?
Answer: Yes, the EXTECH Instruments HW30 is designed with portability in mind. Its compact size and lightweight build allow users to easily carry it in bags or tool kits. This portability makes it an excellent choice for professionals who need to measure environmental conditions on the go, such as HVAC technicians conducting site visits or researchers collecting field data. -
Question:
How does the stopwatch function work on the HW30?
Answer: The stopwatch function on the EXTECH HW30 allows for precise time tracking alongside temperature and humidity readings. Users can start, stop, and reset the timer, which is useful for experiments or processes requiring specific timing. This multifunctionality can benefit professionals monitoring procedures in laboratory settings or during quality control processes in manufacturing. -
Question:
What kind of display does the HW30 have?
Answer: The HW30 features a large, easy-to-read LCD display that presents measurements clearly and prominently. This user-friendly display allows for quick referencing of both temperature and humidity levels, making it accessible for users of all skill levels. Professionals such as educators or trainers can utilize the HW30 in demonstrations, ensuring that students can easily read and understand data. -
Question:
Can I reset the humidity and temperature readings on the HW30?
Answer: Yes, the EXTECH HW30 allows users to reset the recorded humidity and temperature data. This feature is particularly useful for tracking changes over time, enabling users to monitor environmental fluctuations in various settings. For example, users can monitor indoor air quality throughout the day or compare conditions across different rooms in a building. -
Question:
What is the measurement range for temperature and humidity on the HW30?
Answer: The EXTECH HW30 has a temperature measurement range from -4°F to 140°F and can measure humidity levels from 0% to 100%. This wide range makes the device suitable for multiple applications, such as monitoring climates in residential settings or conducting scientific research. For instance, it can help gardeners assess the ideal conditions for plant growth or assist in HVAC system diagnostics. -
Question:
Where can I buy EXTECH Instruments HW30 HeatWatch Humidity and Temperature Stopwatch in Bulgaria?
Answer: You can purchase the EXTECH Instruments HW30 HeatWatch Humidity and Temperature Stopwatch on Ubuy, which is a reliable online platform that offers a diverse range of products, including measuring instruments. Ubuy provides a convenient shopping experience, ensuring you can easily find and acquire this professional-grade device for your needs.
Extech Stopwatches Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
€ 41
Order now and get it around Monday, August 03
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Displays temperature, humidity, and heat index for comprehensive monitoring.
- Features an up/down stopwatch function with 1/100 second resolution.
- Includes a 99 lap counter for tracking performance.
- Recalls fastest, slowest, and average lap times for detailed analysis.
- Offers both 12 or 24 hour clock function for convenience.
- Calendar mode shows day, month, and date effortlessly.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.