Profile: Nebulisers Direct offers nebuliser machines and accessories, such as mask sets & mouthpiece sets, as well as related items including pulse oximeters and peak flow meters. We also sell nebulisers which can be plugged into the car, or used with AA batteries. Nonin Onyx 9500 finger pulse oximeter is a durable and accurate unit that is designed for spot checking or attended care monitoring of adult or children from 2 years of age. Weighing only 54 grams, it can be worn with comfort around the neck or it can be kept in the pocket. The Nonin 9500 Onyx pulse oximeter is a self-contained digital pulse oximeter that is ideal for spot-checking or short term patient monitoring. The convenient size and an easy to read LED display provide numerical values for functional SpO2 and pulse rate, making it an ideal choice for health care professionals.