Dwyer 616W-20B-LCD is a differential pressure transmitter with a temperature range of -4 to 158°F (-20 to 70°C). It has an accuracy of ±0.25% FS @ 77°F (25°C) and a display accuracy of ±0.5%. The transmitter requires a power input of 10 to 36 VDC (2-wire), 17 to 36 VDC, or isolated 21.6 to 33 VAC (3-wire). It has an instantaneous response time and a NEMA 4X (IP66) enclosure rating. The electrical connections are 4-wire removable European style terminal block for 16 to 26 AWG. The output signal options include 4 to 20 mA (2-wire), 0 to 5 VDC, or 0 to 10 VDC (3-wire). It has digital push-button zero and span adjustments. The transmitter is suitable for air and non-combustible compatible gases. It can be mounted in any orientation. The wetted material should be consulted with the factory. The pressure limit can be found on the model chart on the catalog page. The process connection is barbed, with dual size to fit 1/8" and 3/16" (3.12 and 4.76 mm) ID rubber or vinyl tubing. It has a thermal effect of ±0.02% FS/°F (±0.036% FS/°C), loop resistance of 0-1250 Ω max for current output and a minimum load resistance of 1 kΩ for voltage output. The stability of the transmitter is ±1% FS/yr and has a maximum continuous current consumption of 21 mA.