TAS Sigma Delta vaporizers are designed with the latest technology, high quality manufactured . The device has an aluminum chassis weighs about 5 kg . The maximum volume of 250 mL, 35 mL is the minimum volume , maximum margin of error is ± 10 %. The flow rate is 0.2 to 15 l / min can be set in. Weight Operating temperature 15 ° C - 35 ° C ( 58F - 95F ) between . In the vaporizer to prevent the use of two vaporizers at the same time locking ( interlock ) it is. Key Type Fast Type and includes 3 types of pool filling adapter in accordance with the user's request , including Type . Sevofluar and Isoflurane vaporizer until at least ten (10) years , it does not require calibration.