AMTAST Water Activity Meter Smart Food Water Activity Tester for Food Jerky Dried Fruit Grain Vegetable, AW Monitor Water Activity Testing with Bluetooth Function WA-60AB

Features

• 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.
• 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.)
• 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.
• Please note: This meter is calibrated by factory, users do not need to calibrate again, just input samples and test which is very simple.
• 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