Applications: Can be used to measure the water activity of foods. No matter when and where you need to measure water activity, WA-60A water activity meter is your unique choice. 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. It is often used to measure the dryness enduring ability of the microorganisms. By measuring the water activity of food and selecting reasonable packing and storage methods, the use of preservatives can be reduced and the shelf life of food, grain and fruits and vegetables can be judged. Features: *This is a real portable water activity meter, with a weight of only 100 grams, lighter than a mobile phone, and a precision of 0.02 aw, easy to measure water activity anytime and anywhere. *Sensors and readings are integrated. *Fast test, measurement of water activity in 5 minutes. *Easy reading, water activity and temperature of the samples displayed together. *It has automatic shutdown, manual shutdown function and undervoltage alarm indication function. SpecificSation: Display:6 bit backlight LCD digital display (3 bit humidity aw,3 bit temperature display) Range:0~1.0aw Resolution:±0.01aw Accuracy:±0.02aw Sensor:Non conductive humidity sensor Sampling Time:5 Minutes Operation Conditions:Temperature:0~50ºC,Humidity:<95%RH Power Supply:2x1.5V AAA(UM-4)(Not Including Battery) Dimensions:135x70x44mm Weight:100g Optional Accessories Does not include delivery(Need to order separately): 1.RS-232C data cable. 2. USB Software. If you need to buy accessories, please contact customer service!