Hydrogen gas detection alarm alarm hydrogen enters update mode! More powerful it! The price is fantastic! My little friends are shocked! Jinan Dean Ho Pui anti Equipment Co., Ltd. (TEL: 0531-66958571 / 15562586303 Contact: Dong Jingli) Product Features: RBK-6000 high-speed CPU processor that can handle the task quickly and accurately, to ensure system reliability. Can achieve local control and remote computer monitoring, operation status detector data can be stored permanently 4 programmable relays, passive normally open, normally closed contact, contact capacity 240V5A LCD LCD screen, real-time display of concentration detector status. Realization of combustible and toxic gas detectors hybrid configurations. Modular design for easy system maintenance. 485 communication protocol to use, high reliability. Backup power supply into the module. Optional accessories repeater module linkage control module performs technical parameters: Dimensions: 370mm (L) × 305mm (W) × 90mm (H) and RBT-6000 gas detector supporting the use of the LCD screen displays: ppm /% LEL Operating voltage: AC220V ± 10% Operating temperature: -20 ℃ ~ 60 ℃ Humidity: ≤95% RH alarm system: sound and light alarm Alarm volume: ≥75dB Transmission distance: ≤2000m Weight: ≤4.5kg