GAS DETECTOR: FIXED MODEL; 8/32 VCC SUPPLY; 2 DETECTION FUNCTION; MEASUREMENT RANGE 0 TO 25% O2;#, ADDITIONAL CHARACTERISTIC OUTPUT, 4-20MA 2 WIRE; GAS TYPE 2; CROWCON TXGARD-IS+ COMMERCIAL REFERENCE; # COMMERCIAL REFERENCE, TYPE/AG/AA/011/ZZ; NOTE NOT APPLICABLE;