Features Advanced Digital Filtering Technology: Experience strong anti-interference capabilities that effectively suppress low-frequency disturbances, ensuring reliable measurements in challenging environments Universal Installation Compatibility: Designed for easy installation with dimensions that fit both domestic and international instruments, simplifying maintenance and replacement Innovative Porous Heat Dissipation: Utilizes a unique design for optimal airflow, promoting superior heat dissipation and maintaining stable performance during operation Exceptional Measurement Accuracy: Achieve precise readings with high reliability, making it an ideal solution for various industrial and environmental applications Versatile Application Range: Perfectly suited for use in water treatment facilities, wells, mines, and more, this controller adapts seamlessly to diverse environments and needs Features: 1、100% and . 2、The instrument is for measuring differential prure, positive prure and nagative prure 3、It can be used to measure air-conditioning and ventilation system or verify in the site, and clean room or any corrective maintenance of gas prure system. 4、Simply and convenient to carry. 5、It is a indispensable measuring apparatus to heating and ventilation air-conditioning technicians, operating maintenance engineers, and scientific researchers. Specification: Features: 1. 100% and . 2. The instrument is for measuring differential prure, positive prure and nagative prure 3. It can be used to measure air-conditioning and ventilation system or verify in the site, and clean room or any corrective maintenance of gas prure system. 4. Simply and convenient to carry. 5. It is a indispensable measuring apparatus to heating and ventilation air-conditioning technicians, operating maintenance engineers, and scientific researchers. Specification: Condition: 100% Model: SW-512B Range of Measurement: ±39.99kpa Accuracy: ±1%FS Maximum Limit of Prure: 79.9KPa Repeatability: ±0.25%FS Prure Connection: One 1/8''(3.18mm) Quick Coupling Operating Temperature/Humidity: 0℃-40℃ 10%-80%RH Storage Temperature/Humidity: -10℃-60℃ 10%-90%RH Outrange Warning: Err1 Or Err2 Power Supply: 3 x 1.5V AAA(not included) Weight: Approx. 341g / 12.0oz Package List: 1 x Digital Differential Prure Gauge 1 x User Manual 1 x Prure Head 4 x Transparent Tube 1 x Carrying Bag Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List