For vacuuming the refrigeration and air conditioning system! Equipped with a maintenance-free long-life sensor.
The "testo 552BT" is a digital vacuum gauge that employs a Pirani-type sensor. It is suitable for vacuum pumping during the installation of refrigeration and air conditioning systems and heat pumps. It calculates the evaporation temperature of water (TH2O), the ambient temperature (Tamb), and the temperature difference (Δt). Additionally, we also offer the refrigerant detector "testo 316-3/316-4," which is necessary for the maintenance of refrigeration and air conditioning equipment. 【Features and Functions】 ■ Smartphone-compatible digital vacuum gauge ■ Long-life sensor that requires no maintenance ■ Calculates the evaporation temperature of water (TH2O), the ambient temperature (Tamb), and the temperature difference (Δt) ■ Display with backlight ■ Threshold setting available ■ Auto power-off function *For more details, please download the PDF or feel free to contact us.
Inquire About This Product
basic information
【Refrigerant Gas Detector testo 316-3/-4 Features】 ■ Alarm sound increases with detection amount ■ Ready to use with heat diode sensor (316-3) ■ Detection is indicated by alarm sound and display color (316-4) ■ Sensor replacement allows for ammonia refrigerant compatibility (316-4) *For more details, please download the PDF or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
For more details, please download the PDF or feel free to contact us.
catalog（1）
Download All Catalogs
Company information
Testo SE & Co. KGaA is a German global company with 37 local subsidiaries and affiliated companies worldwide, and it forms a network of agents in other regions. Since its establishment in 1957, it has focused on the research and development of portable environmental measuring instruments, releasing products that meet market needs. By proposing high-precision environmental measuring instruments and data management solutions, it has received high acclaim in a wide range of fields, including energy conservation, safety management, environmental protection, and food & healthcare. In Japan, it not only sells measuring instruments but also has established service centers to provide prompt maintenance and the issuance of calibration certificates.