Feature:1. REAL TIME ACCURATE DISPLAY: Two wire 420mA signal and RS485 digital signal output, capable of real time communication with computers. Adopting high speed and good accuracy processing circuits to achieve fast and accurate instrument measurements.2. EASY TO USE: Large screen LED display, function arrowhead indication for easy operation. Equipped with infrared remote control, parameter adjustment can be achieved without opening the cover. Full range temperature digital compensation. Remote control or buttons enable the detector to be freely configured on site, such as viewing, setting, and calibration.3. STRONG COMPATIBILITY: The instrument outputs various standard signals and can be compatible with various alarm systems, PLC, DCS and other control systems.4. EASY TO MAINTAIN: Plug and play international standard intelligent sensors, explosion proof housing design, on site maintenance is safe, convenient, and fast.5. APPLICABLE SCENARIO: The instrument is widely used in petroleum, chemical industry, metallurgy, fire protection, coal mine, power, ship, environmental protection, telecommunications, medical and other industries.Specification:Item Type: Combustible Gas DetectorMaterial: Die Casting AluminumDetection Range: 0 to 100 percent LELDisplay Method: LED displayDetection Accuracy: 3% F.SLED Display Content: Measured gas name, real time numerical value, 50 segment bar chart display in real timeGas concentration, gas full scale, gas internal parametersLED Display Mode: ppm, ppb, mg/m3, ug/m3,% VOL,% LELWorking Environment Temperature: -20 to 50 Working Environment Humidity: 10 to 95% RH non condensingSignal Output:4-20mA Signal: Standard 12 bit accuracy 4-20mA output chip, transmission distance 1KmRS485 Signal: Using standard RTU protocol, transmission distance 1KmInput Voltage: 100-240VWorking Voltage: 24VDC (12-30VDC)Battery: CR2025 button battery x 1 (remote control shipped without battery).Package List:1 x Tester 1 x Plug Adapter 1 x Interface 1 x Remote Control1 x Accessory 1 x Manual