Portable carbon dioxide detector GAC / BX258

Portable carbon dioxide detector Model: GAC / BX258 Instrument:? The main features and technical specifications 2.1 main features advanced ultra-low-power 32-bit microcontroller with a resolution of 128 * 128 CSTN display can be set high and low alarm points, two? level alarm, display alarm category? calibration concentration adjustable, user calibration? high concentration sensor protection (flammable gas only)? combustible gas sensor fault detection? battery voltage tips? provides real-time clock display? interchangeable modular Sensor? automatic calibration function, reducing the detection error? two triple alarm (sound, light, vibration) and difficult to ignore? STEL① otherwise toxic gases and TWA② alarm? boot from detection, and advanced self-diagnostic and self-repair function ? password management functions, an important action requires password authentication, to effectively prevent the misuse of intrinsically safe equipment Description:?? ①STEL - 15 minutes statistical weighted average. ②TWA - 8 hour time weighted average statistics. 2.2 Technical Specifications apply gas: combustible gas, toxic gas (see table) and the oxygen sensor type: catalytic combustion (flammable gas), electrochemical (toxic gases and oxygen) Sample: natural diffusion display error: ≤ ± 5% FS Response time: T90 <30s Indicate way: LCD display real-time data and system status LEDs, sound, vibration alarm indication, fault and undervoltage Operating temperature: -20 ℃ ~ 50 ℃; Humidity: <95% RH non-condensing Operating voltage: DC3.6V lithium battery; 2100mAh Charging time: 4 ~ 8h continuous working time (room temperature): not less than 10 hours Sensor life: 2 Year Protection: IP65 Dimensions l × b × h, mm: 135 × 64 × 33 Weight: about 250g