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Digital Pressure Gauge

This product is an integrated intelligent pressure monitoring device that combines multiple functions including cylinder pressure display, remaining working time calculation, ambient temperature detection, and personnel safety alarms. It also serves as the transmitter for the Heads-Up Display (HUD) system, wirelessly synchronizing pressure data with the HUD receiver to enhance user situational awareness and operational safety.

Core Functions
- Pressure & Time Display: LCD screen displays real-time cylinder pressure and remaining working time with intuitive digital readouts.
- Low Pressure Alarm: Automatically triggers high-decibel audible and visual alarms when cylinder pressure drops to 60±10 bar, reminding users to evacuate.
- Distress Alarm Function: Manual or automatic activation of distress signals to assist teammates in rapid location and rescue.
- Man-Down Alarm: Automatically triggers a pre-alarm if the user remains motionless for 15 seconds; if still motionless after another 15 seconds, the main audible/visual alarm activates for continuous distress signaling.
- Ambient Temperature Detection: Real-time monitoring and display of ambient temperature; triggers a high-temperature alarm when exceeding preset thresholds to prevent heat stress risks.
- Battery Level Monitoring: Real-time battery status display; yellow warning light illuminates when battery drops to 20%; device remains operational for over 2 hours after low battery indication appears on screen.
- Alarm Acknowledgment & Reset: Users can manually acknowledge and reset alarms via button to avoid false alarm interference.

Dual Backup Design
- Features both mechanical pressure gauge and LCD digital pressure gauge, ensuring pressure readings are always available even in case of Digital failure.
- Automatic power-on upon opening cylinder valve, entering standby and detection mode without manual operation for enhanced convenience.

Display & Protection
- LCD screen with backlight ensures clear readability in dark environments.
- External rubber protective cover made of flame-retardant and anti-static materials, providing impact protection suitable for harsh operating conditions.
- Alarm system combines high-decibel sound (≥90 dB) with high-intensity LED flashing, ensuring timely detection even in noisy or smoke-filled environments.
Technical Specifications
- Working Pressure Range: 0~30 MPa
- Low Pressure Alarm Point: 60±10 bar
- Man-Down Alarm Timing: 15 seconds (pre-alarm) / 30 seconds (main alarm)
- Battery Type: Replaceable dry batteries (specific model subject to actual product)
- Ingress Protection: IP67 (dustproof and waterproof)
- Explosion Proof Rating: Ex ia IIC T4 Ga (intrinsically safe)
- Operating Temperature: -30°C ~ +60°C
- Wireless Transmission Range: ≥1 meter (to HUD receiver)

1. Intelligent Integration: Combines pressure monitoring, time calculation, temperature detection, man-down alarm, and distress functions in one device.
2. Dual Backup: Mechanical and digital gauges provide redundancy, ensuring pressure readability even during Digital malfunction.
3. Auto On/Off: Automatically powers on when cylinder opens and enters sleep mode when closed, saving battery life.
4. Multi-Alarm System: Low pressure, man-down, high temperature, distress—multiple alarm modes for comprehensive personnel protection.
5. Wireless Transmission: Serves as HUD transmitter, synchronizing pressure data with in-mask HUD display, keeping hands free.
6. Durable Construction: Flame-retardant and anti-static rubber cover resistant to impact and corrosion for extreme environments.
7. Extended Battery Life: Remains operational for over 2 hours after low battery warning, ensuring mission completion.

Widely used in firefighting and rescue, petrochemical industry, mine rescue, industrial safety, municipal emergency response, and other fields, particularly suitable for respiratory protection operations requiring real-time cylinder status monitoring and personnel safety alerts.