Standard Accessories:Main Unit ( 1pc ),Carrying Case ( 1pc ),Operation Manual ( 1pc ) Product Description The Water Activity Meter 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. Technical Parameters-----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 : Non conductive humidity Sampling Time: 5 Minutes Operating condition: Temp: 0~50°C (32~122°F) Humidity: <95%RH Power supply: 2x1.5V AAA Um-4 Battery Size: 135x70x44mm Weight: 100g (Not including batteries) Standard Accessories * Main Unit * Sample Plate * Carrying Case * Operation Manual Measuring Procedure------4.1 Press the power key to switch on the power and the gauge enters the auto mode which can automatically test the water activity. 4.2 Put the samples into the sample plate, and then cover the of the gauge onto the sample plate. The bottom of the battery is 2 points calibrated under the battery. It works by placing a sample in a sealed measuring container. About this item [Efficient Water Activity Measurement]: The water activity meter measures water activity within 5 minutes, and the measurement is accurate and fast. It can display water activity and sample temperature at the same time, which is very convenient. Test range: 0~1.0 Aw; Resolution: ±0.01 Aw; Accuracy: ±0.02 Aw. [Indication Function You can check our professional calibration video at the following Related Video Shorts The machine can be calibrated at 2 points. Product Parameters 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 Sampling Time : Fast test, The test time of our activity meter is greater than 0.25 and less than 0.85, generally 10 minutes to 20 minutes, less than 0.25 greater than 0.85, the minimum test time is 30 minutes to 1 hour Operating Condition:Temp: 0~50°C,Humidity: <95% Power Supply:2x1.5vAAA Um-4 Battery(battery not included) Size:135x70x44mm Weight:100g (Not including batteries) Product Feature Fast test, The test time of our activity meter is greater than 0.25 and less than 0.85, generally 10 minutes to 20 minutes, less than 0.25 greater than 0.85, the minimum test time is 30 minutes to 1 hour Easy reading, water activity and temperature of the samples displayed together. 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. WA-60A Water Activity Meter,Smart Food Water Activity Tester Use a small hard bar (such as screwdriver) to slightly touch the key inside, the correction value will be increased or decreased It is worth noting that the measured object cannot be HEATED. Then open the battery cover on the back, there are 2 small hole below the battery slot. Then release the key when the signal ‘Cor’, comes out on the display. 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. High Quality:The square bolt is made of high-standard 304 stainless steel, which is durable, anti-corrosion, anti-rust, and wear-resistant. Work well in damp room and outdoor environment. 🦹♂️Surface 1 What substance do you need to test and what accuracy do you need? We would like to confirm whether the Water Activity Meter you bought meets your requirements. The principle is film capacitor method Can it be calibrated by myself? How to calibrate?---Yes you can calibrate yourself. What is the method used to determine Aw?---It tests the AW value by the meter on the bottom part. After the order , Kindly please answer us the following question . 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 Water Heater Vapor Sensor GY1 Water Activity Meter Fruit Vegetable Water Activity Analyzer Monitor Tester Portable Digital Water Tester It is often used to measure the dryness enduring ability of the microorganisms. When the vapor pressure of the water in the substance and the water in the air reaches equilibrium, the relative humidity of the air surrounding the sample is equal to the water activity of the sample. How do you calibrate this instrument?---You can calibrate yourself. There will be a decimal number with two places, which is the correction value.