The ATM series 23 is a precision pressure transmitter offering high performance. The ATM.ECO is an electronically compensated pressure transmitter providing a 3-wire, analog voltage output. The ATM.1ST is an electronically compensated pressure transmitter providing a 3-wire, analog voltage output. The ATM/T series 26 is a precision transmitter based on the STS well proven ATM 23 series but incorporating a PT100 measuring element to provide a dual output of either 4-20 mA or 0-5/10 VDC. The ATM.1ST/T is a precision transmitter based on the?well proven STS ATM series but incorporating a Platinum RTD measuring element to provide a dual 4-20mA output in either 3 or 4 wire configuration.