Industrial Dust Detector Explosion Proof Dust Concentration Alarm Detector with Remote Control 100‑240V US Plug Item Type: Industrial Dust Detector Material: Die casting aluminum Detection Range: 0-1000ug/m3 Display Method: LED LCD display Detection Accuracy: ±3% F.S LCD Display Content: Measured gas name, real time numerical value, 50 segment bar chart display of real time gas concentration, gas full scale, and gas internal parameters LCD Display Mode: ppm, ppb, mg/m3, ug/m3, % VOL, % LEL Working Environment Temperature: -20℃ to 50℃ Working Environment Humidity: 10 to 95% RH non condensing Signal Output: 1. 4-20mA Signal: Standard 12 bit precise 4-20mA output chip, transmission distance 1Km 2. Signal: Using standard protocol, transmission distance 1Km Battery: button cell x 1 (remote control shipped without battery)