The Mercury Infant resuscitator is definitely one of the top resuscitators available. It is the only one of its type specifically designed with neonatal anatomy in mind, rather than using miniturized components from adult models. The face mask is countoured specifically for the flat, small face of the neonate and the resuscitation bag features sensitive compliance so that you can feel the resistance as the lungs fill with air. Mercury also features a disposable manometer, which allows you to see how much pressure you are providing and for how long. 

This set is available in single patient and reusable models. The single patient option is a highly affordable device, and manufactured to a quality similar to many reusable resuscitators on the market.

The single patient units come with a manometer, peep valve, and a pop-off valve lock clip.

The reusable unit is a simple bag and mask device, but manometers can be added.