For measuring the flow and volume of water with a temperature up to 30 °C or 50 °C in the closed-circuit system with the full flow of the flux, and on the maximum working pressure up to 16 bar (PN16). Suitable for installation in the horizontal hoses (pipelines) with the counter directed upwards (H) and in vertical or horizontal hoses with the counter directed sidewards (V). Water meters JS Master + are equipped with impulse transmitter (JS-NK) or adapted for installation of the transmitter (JS-NKP), in standard version with five-barrel counter (IP65), brass housing, antimagnetic protection. Water meters are adapted to operation in the systems of remote data transfer (AMR).