400 X,F / H 5 mm This 5mm two RF-channel probe version allows the measurement of X nuclei including 19F with 1H decoupling and vice versa with standard sensitivities in particular for the X range. Key Features: Optimized for X, 19F with 1H decoupling Standard SNR for 1H, 19F and 13C Temperature range -50°C to 130°C Available for 400-600 MHz