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Description
Water Activity Meter WA-160ADescription The TOMLIN WA 160A Water Activity Meter is a portable, high precision device designed for measuring water activity (aw) in food and other materials. This innovative tool is essential for assessing food quality, microbial stability, and chemical or enzymatic changes that impact product shelf life. Its compact design and advanced features make it ideal for fieldwork, laboratories, and production facilities. Key Benefits Food Preservation:
Description
The TOMLIN WA-160A Water Activity Meter is a portable, high-precision device designed for measuring water activity (aw) in food and other materials. This innovative tool is essential for assessing food quality, microbial stability, and chemical or enzymatic changes that impact product shelf life. Its compact design and advanced features make it ideal for fieldwork, laboratories, and production facilities.
Key Benefits
- Food Preservation: Reduces the need for preservatives by identifying microbial growth potential.
- Packaging Optimization: Assists in selecting the best storage and packaging methods.
- Shelf-Life Prediction: Enhances the ability to predict product shelf life accurately.
Key Features
-
Integrated Sensors and Display:
- Compact design combining sensor and display into a single unit.
- Simultaneously displays water activity (aw) and temperature for convenience.
-
Fast and Accurate Measurements:
- Achieves results within 5 minutes.
- High precision with ±0.02 aw accuracy.
-
Ease of Use:
- Automatic and manual shutdown options.
- Undervoltage alarm for low battery indication.
- Lightweight and portable, weighing only 100 g (main unit).
-
Data Connectivity:
- USB data output for seamless data transfer and analysis.
- Optional Bluetooth connectivity for wireless data transfer.
Applications
- Food Quality Assessment: Suitable for food, grains, fruits, vegetables, and other materials.
- Production Facilities: Optimizes quality control in manufacturing environments.
- Research and Development: Ideal for laboratories conducting shelf-life studies.
Specifications
| Parameter | Details |
|---|---|
| Display | 6-bit backlight LCD (3-bit aw, 3-bit temperature) |
| Measurement Range | 0–1.0 aw |
| Resolution Accuracy | ±0.02 aw |
| Sensor Type | Non-conductive humidity sensor |
| Sampling Time | 5 Minutes |
| Operating Temperature | 0–50°C |
| Operating Humidity | <95% |
| Power Supply | UM-4 Battery |
| Dimensions | 148 x 65 x 65 mm |
| Weight | 235 g (excluding batteries) |
Standard Accessories
- Main Unit (1 pc)
- Carrying Case (1 pc)
- Operation Manual (1 pc)
Optional Accessories
- USB Data Output for PC connectivity
- Bluetooth Data Output for wireless connectivity
Alternative Names
- Food Water Activity Meter
- TOMLIN WA-160A Water Activity Tester
- Portable Water Activity Measurement Device
Downloads
PDF Specification Sheet - Download Here
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 637 reviews
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Product Reviews
★★★★★ 5
Perfect inserts for a great price
Size: 20 x 20 inches, Style: 4 Pack, Size: 20 x 20 inches, Style: 4 Pack
Great inserts! (The cat’s judgement is of me, not the inserts)
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Hands down best hammock accessory
Color: Green, Size: Medium
Tried many, this pillow is perfect. Not too big, not too small. Soft yet supportive. It’s also well made and super comfy. Plus it packs up nicely. I’m a new Wise Owl convert, everything I’ve ordered so far has been excellent quality. Just wish they kept the colors consistent so it all matched (minor annoyance). You need this.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Comfy, soft, packable, and cool
Color: Green, Size: Small
I absolutely love this pillow. It's well constructed but not OVER constructed - it is soft, comfortable to my neck and head - very packable and stays pretty cool - like the 'other side' of the pillow. I also appreciate the stuff sack that Wise Owl sends with it. I was able to get this down into my right side of my Redwing 50 pocket. This thing fits everywhere and while some folks think its a luxury, when you get to be my age - comfort is something that you take for granted. I feel well rested after a night on this bad boy.
Shape always fluffs back out. I think it's a great value at the price point it is at compared to other pillows in this range. Very very durable, like all Wise Owl products I own. Easily fits snugly into the bag, and can mold around you depending on how you want to adjust it. I don't use a sleeping pad, just this for my neck support and it really is worth every penny.
Water resistance - I'm not sure as I've not had the opportunity to see it but I feel like with the material it is, water would probably bead off in light amounts.
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Reviewed in the United States on December 20, 2025
★★★★★ 4
It's comfy but not UL nor packs down well.
Color: Blue, Size: Medium
Don't get me wrong, overall this is a very good mini portable camping pillow that has slightly bigger length, width & thickness than most of the other name brand inflatable camping pillows that cost $20 extra, which is nice for having more pillow/support to work with while you sleep, & it being foam filled rather than inflated means you don't have to worry about it deflating on you overnight out in the wilderness where you likely don't have a backup!..
All that is great until it's time to pack it back up..
It doesn't compact down small, nor easily. You have to put a little elbow grease into tightly rolling it up like a burrito, 🌯
And even Then, it's still a bit of a fight to squeeze it back into it's compression sack, but Still winds up being a bulky bulgy chunk of space real estate in my pack, and if you're a serious hiker you know every ounce counts as well as every inch of space that's taken up by bulky gear.
I didn't consider returning or replacing it for something else until wayy past the return window.
Again, it's not bad at all for your average travel or weekend camping trips, but for expedition, section or thru-hiking it's not the best choice to go with when budgeting weight & space in your pack.
I went with a similarly priced Teton camping pillow that is 18" by 12", also filled not inflated so it's basically the same thing but ever so slightly smaller in circumference, yet packs down noticably easier & more compact, weighing slightly less & taking up noticably less space in your pace as well.
I can easily stuff it in the outer back kangaroo pouch on my Osprey Atmos AG 50L.
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Reviewed in the United States on January 28, 2025
★★★★★ 5
Soft and Confortable
Color: Rose, Size: Medium
Excellent travel and camping pillow. Soft and confortable. My wife loves it.
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Reviewed in the United States on May 26, 2026