【How to use calibration】Press CAL for 5 seconds to enter the calibration mode, press in turn to select the powders corresponding to 6.86, 4, and 9.18 to complete the calibration. | 【Mini Size】The mini size ph meter we designed allows you to easily put it in your pocket, so you can take measurements anytime, anywhere. It can help you test it whether you take it to the pool, on a trip, to the beach or camping. | 【Family Essentials】As a tool to improve the quality of life. Can be used to test drinking water, swimming pools, PH balance in aquarium, RO system, spa or hydroponics. Basically all the environments that need to test PH value can use this tester to get accurate data. | 【High Accuracy】ph tester has a sensitive electrode sensor ,simply press "ON", It only takes a few seconds for your result to appear on screen.read accurate pH levels. The included detailed manual will show you how to get the best accurate and stable reading. | 【Automatic Temperature Compensation】No more need to take care about the temperature of testing liquid,as the Ph Meter Has an Auto Temprature Compensation Feature That Adjusts to Water Temperatures and Water Quality.

【How to use calibration】Press CAL for 5 seconds to enter the calibration mode, press in turn to select the powders corresponding to 6.86, 4, and 9.18 to complete the calibration. | 【Mini Size】The mini size ph meter we designed allows you to easily put it in your pocket, so you can take measurements anytime, anywhere. It can help you test it whether you take it to the pool, on a trip, to the beach or camping. | 【Family Essentials】As a tool to improve the quality of life. Can be used to test drinking water, swimming pools, PH balance in aquarium, RO system, spa or hydroponics. Basically all the environments that need to test PH value can use this tester to get accurate data. | 【High Accuracy】ph tester has a sensitive electrode sensor ,simply press "ON", It only takes a few seconds for your result to appear on screen.read accurate pH levels. The included detailed manual will show you how to get the best accurate and stable reading. | 【Automatic Temperature Compensation】No more need to take care about the temperature of testing liquid,as the Ph Meter Has an Auto Temprature Compensation Feature That Adjusts to Water Temperatures and Water Quality.

【2 in 1 Heat Sealer and Cutter】High quality ABS material，Quickly seals and cuts. Made from ABS material, it can resistance to high and low temperatures that make it live longer. | 【Easy to Use】Comes with a use manual. After the battery is installed，press it for about 5 minutes to start heating. Put the bag to be sealed in the middle and slowly pull it at a constant speed.Also you can just press and pull the mini food cutter with the sharp blade for you to open the bag. | 【Easy to carry】Mini portable bag cutter and sealer length only 5.67in，which can be put into your pocket, and is most suitable for travel and carrying. | 【Save and Compact】With this mini bag sealer, you can take it and use it to open the snack food bags whatever you sitting on the living room, in kitchen or while watching TV. you don’t need to use scissors anymore and don’t worry about that scissors will hurt you kids. | 【Good Food Storage Tool】Never worry about your containers leaking or opening which lead a mess or food spoilage. This mini sealer can seal the food bag to keep the food fresh and dry. And open it at any time you want. Just press and pull the mini food cutter across the bag.