Pump with hose, but no (usable) manometer? Zero problemo, with "da gauge".
Cut the hose at a suitable point, insert "da gauge" and the pressure is easy to read, as it should be on a proper pump. Pressure gauge diameter 26mm, accuracy class 5%. Pressure gauge in "professional quality" from the pneumatic industry. Display up to 10bar (1.0MPa). The manometer can be rotated.
Suitable for hoses with an inner diameter of 4mm. Comes ready for assembly with two clamps. When ordering, specify the outer hose diameter: 5-7mm, 7-9mm or 9-11mm.