The Water Activity mainly reflects the amount of free water in the state of food balance, the stability of food and the possibility of microbial reproduction, and the chemical, enzyme and physical changes that can cause the change of food quality.
This meter is calibrated by factory, usersdo not need to calibrate again, just input samples and testwhich is very simple.
1. Sensor: Non conductive humidity sensor(stainless steel sensor)
2. Range: 0~1.0aw
3. Resolution: ±0.01aw
4. Accuracy: ±0.02aw
5. Display: 6 bit backlight LCD digital display (3 bit humidity aw, 3 bit temperature display)
6. Sampling Time: 5 Minutes
7. Operation Conditions: Temperature:0~50ºC; Humidity: <95%RH
8. Power Supply: 2×1.5V AAA Size (UM-4)Battery(Batteries are not included)
9. Dimensions: 135x70x44mm
10. Weight: 100g (Not Including Batteries)
11. Standard Accessories: Main Unit; Sample Plates; Bluetooth Data Adapter with Software; Carrying Case; Manual
12. Optional Accessories: USB Data Cable& Software
13. It has automatic shutdown, manual shutdown function and under voltage alarm indication functions
Please Note:
Batteries are not included in the package due to Aviation Security Check. Sorry for any inconvenience caused.
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This is a real portable water activity meter lighter than a mobile phone and with precision of 0.02 aw, easy to measure water activity anytime and anywhere. Easy reading, water activity and temperature of the samples displayed together.
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Bluetooth Function. Provide Bluetooth Data Adapter with Software for PC connection. (With Optional Choice: USB Data Cable with Software. Search ASIN： B0858YQGWT to learn more details.)
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Fast testing, measures the water activity in 5 minutes. Sensors and readings are integrated. Put the samples in sample boxes and meters are placed on them until the data are stable.
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Please note: This meter is calibrated by factory, users do not need to calibrate again, just input samples and test which is very simple.
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If you want to verify the accurate, you can make the standard salt solution by the following steps: 1. 100g pure NaCl, add into 200g hot distilled water, stir it. Then wait till to room temperature. 2. Keep the solution into a brown bottle for one week in room temperature. 3. In room temperature 25°C (77°F), make sure the meter, solution, room temperature all same temperature. The solution AW value should be 0.73~0.77