Riester empire n-Wall Model

Maximum error tolerance of +/-3 mmHg
99.99% pure mercury
Precision glass column
Internal diameter 4.2 mm +/-0.2 mm
Latex bulb with chromium plated air

release valve
Precision air release valve, wear-free

and with ine regulation
Microilter for long life
Cuf with two-tube latex bladder
Easily legible scale up to 300 mmHg
Mercury lock
Coil tubing extendible up to 3m