Features Operability that can be pulled smoothly with a small amount of force. Built-in chip breaker that cuts the detector tube before measurement. Comes with a finish indicator that shows the end of measurement at a glance. Use Various gas detection and measurement can be performed depending on the type of detector tube. For various purposes such as building management measurement, work environment measurement, indoor environment measurement, odor measurement, oxygen deficiency prevention, office hygiene regulations, and other research and process management. Product specifications Specifications / standards JIS K0804 detector tube type gas measuring instrument It can be used to measure hundreds of types of gas (some are not applicable). Two-step method of suction amount (per time) 100 ml / 50 ml Dimensions (mm): 255 x 50 (cylindrical) Overall length (mm): 350 Material --- Mass / mass unit 250g terms of use --- Precautions The expiration date is the period from the month when the detector tube is manufactured. The expiration date of the detector tube stored in the refrigerator is the period in the refrigerator (10 ° C or less). For accurate measurement, it is important to be able to collect a certain amount of sample without omission. Please check the airtightness test before use. (Explanatory video: https://youtu.be/HzfgyHp3V3E) Set contents / accessories Gas sampler body, accessory set (grease, 3 inlet rubber), instruction manual, handy storage case Storage case grease Inlet rubber Country of manufacture Japan