Alarm Whistle Series Portable Four-in-One Gas Detector

The Sentry Series portable four-in-one gas detector is an intrinsically safe device capable of continuously monitoring combustible gas concentration and toxic gas concentration. It is suitable for explosion-proof applications, toxic gas leak emergencies, underground pipelines, mines, and other such locations, effectively ensuring the safety of personnel and preventing damage to production equipment. The Sentry Series portable four-in-one gas detector utilizes natural diffusion for gas detection, with high-quality gas sensors serving as the sensitive components, providing excellent sensitivity and repeatability

Product Features

The detector utilizes an advanced ultra-low power consumption 16-bit microcontroller ☆ Ultra-wide viewing angle graphic LCD display ☆ High and low alarm points can be set, with two-level alarming, and the alarm category is displayed on the screen ☆ The calibration concentration value is adjustable, facilitating user calibration ☆ High-concentration protection function for combustible gas sensors ☆ Combustible gas sensor fault self-check ☆ Battery undervoltage indication ☆ Provides real-time clock display ☆ Replaceable modular sensors ☆ Automatic calibration function to minimize detection errors

Product Specifications

1. Performance
Gas Detection: Capable of accurately detecting four gases simultaneously Detection method: Diffusion or pump-aspirated Measuring range: consult the manufacturer Detection principle: Consult the manufacturer Accuracy: ≤±3%F.S; (actual concentration, higher accuracy requirements are determined based on sensor performance) Repeatability: ±2%
Response time: T90 < 30S (response times vary among different gas sensors) 2. Electrical characteristics
Operating voltage: DC3.7V Charging time: ≤4 hours Operating time: >20 hours (at room temperature, without alarms) Power consumption: < 3W Battery capacity: 7500mAh lithium battery, nominal voltage: 3.7VDC Alarm mode: Sound, light, vibration, screen indication Indication mode: LCD display of real-time data and system status, LED, audible, and vibrating alarm indications, fault and under-voltage indications 3. Structural Features
Main material: ABS+PC Weight: approximately 350g Size: 147mm×76mm×37mm (length × width × height)

4. Output
Data transmission: USB, 4G, NB-IoT 5. Electrical usage environment Protection level: IP54 Temperature range: -20℃ to +50℃ Humidity range: 10~95%RH (non-condensing) Pressure range: 86~106KPa