Dwyer 610-25D-BDE is a low differential pressure transmitter with an accuracy of ±0.25% or ±0.5% F.S. It operates at a temperature range of -20 to 160°F (-29 to 71°C) and requires a power supply of 13.5 to 30 VDC. With a response time of 0.02 to 0.04 seconds, the transmitter is encased in a fire retardant ABS enclosure and comes with detachable screw terminal connectors for electrical connections. It offers zero and span adjustments using an external security key pendant and outputs a 4 to 20 mA signal. Suitable for air or similar non-conducting gases, it can be mounted vertically and has a pressure limit of 2 psi (0.137 bar). The process connection utilizes 3/16" O.D. barbed brass fittings on a removable process head. It has a thermal effect of 0.5% FS and a loop resistance of 800 ohms max. Stability is ±0.5%/yr, and the transmitter has a current consumption of 25 mA.