Digital pH & Temp Water Quality Tester for Aquariums, Hydroponics, Pools & Laboratories Office Gadgets The pressure gauge can observe

The pressure gauge can observe the air pressure during use

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Audible alarm buzzer

Buckle style: Butterfly double snap

Diffuse the essential oil with the flowing water and adding water can last for more than 48 hours

Digital pH & Temp Water Quality Tester for Aquariums, Hydroponics, Pools & Laboratories Office Gadgets The pressure gauge can observeProduct Information: Temperature Measurement Range: 50C to 70C ( 58F to 158F)pH Accuracy: 0. 1 pHTemperature Resolution: 0. 1C (0. 2F)Automatic Temperature Compensation Range: 0C to 50C (32F to 122F)Ambient Operating Temperature: 0C to 50C (32F to 122F)Color: YellowMaterial: ABS Plastic Features: Simultaneous pH and Temperature Monitoring Automatic Temperature Compensation (ATC) Easy to Read Digital Display Suitable for Aquariums, Fish Tanks,