Fixed ammonia gas detector (explosion-proof type) Detection gas: ammonia Detection range: 0-100ppm Detection principle: electrochemical sensor Output signal: three-wire system 4-20mA Explosion-proof level: Exd II CT6 Protection level: IP66 Working voltage: DC24V±15% 1 relay output LED display, sound and light alarm light Remote infrared remote control operation is simple and convenient Modular products are easy to maintain and come with fire/explosion-proof certification Size: 185.5 (L) * 1428 (W) * 71.5 (H) Weight: about 1100g English program