PAlert Network Accelerometer for earthquake early warning and seismic alarm systems

PAlert Network Accelerometer – IoT Seismic Alarm and Monitoring Sensor

PAlert Network Accelerometer is a network-ready P-wave seismic alarm and monitoring sensor for earthquake early warning, local seismic switching, facility protection, and industrial automation. It combines a tri-axial MEMS accelerometer, embedded Pd/PGA/displacement/STA-LTA algorithms, digital outputs, Modbus TCP/RTU communications, and PC/NTP-supported recording workflows for sites that need fast event detection and practical integration with PLC, HMI, SCADA, alarm, utility-shutdown, and emergency-response systems.

$2.500,00

10 in stock

OVERVIEW

PAlert Network Accelerometer Overview

PAlert Network Accelerometer is a compact P-wave seismic alarm, network accelerometer, and seismic switch for facilities that need local earthquake detection, early warning integration, automatic control outputs, and recorded event data.

It combines a tri-axial MEMS accelerometer, embedded Pd/PGA/displacement/STA-LTA algorithms, configurable digital outputs, Modbus TCP/RTU communications, and PC/NTP-supported recording workflows. For buildings, campuses, utilities, industrial plants, laboratories, and critical facilities, PAlert helps turn seismic detection into practical response actions.

Why This Product

Many earthquake response systems fail at the handoff between sensing and action. PAlert is built for that handoff: it detects ground motion, evaluates configured earthquake triggers, communicates with automation systems, and supports direct outputs for alarms or protective actions.

Key Benefits

  • Fast local detection – Supports P-wave earthquake alarm workflows and site-specific seismic switching.
  • Automation-ready integration – Modbus TCP, Modbus RTU, and digital outputs support PLC, HMI, SCADA, alarm, and facility-control systems.
  • Networked monitoring – Host connections, PC Utility recording, and NTP/PC time calibration support post-event review and monitoring programs.
  • Practical deployment – Compact 10 to 30 VDC device for wall, cabinet, equipment-area, and facility-protection installations.
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PRODUCT PHOTOS

SPECIFICATIONS

Product Type:

P-wave seismic alarm, network accelerometer, and seismic switch

Accelerometer:

Tri-axial MEMS

Measurement Range:

+/-2 g on b and c axes; +1 g / -3 g on a axis

Output Resolution:

16 bit

Frequency Response:

0.05 to 20 Hz

Algorithms:

Pd, PGA, displacement, STA/LTA

Digital Outputs:

2 normal-open outputs; 1 to 1960 gal set-point range; 60 V / 0.6 A DC contact capacity

Communications:

Modbus TCP; Modbus RTU over RS-232 or RS-485 at 19200, N, 8, 1

Host Support:

3 Modbus TCP hosts simultaneously; active connection to 2 TCP servers

Power:

10 to 30 VDC; 3.5 W at 12 VDC

Dimensions / Weight:

125 x 105 x 30 mm; 450 g without power supply and cable

Operating Environment:

-10 to 60 C operating; -20 to 70 C storage

FEATURES

P-wave seismic alarm and network accelerometer for local earthquake detection and facility response.
Tri-axial MEMS accelerometer with 16-bit output resolution for seismic alarm and monitoring workflows.
Embedded earthquake algorithms include Pd, PGA, displacement, and STA/LTA.
Two normal-open digital outputs support alarm, shutdown, utility, access-control, and emergency-response triggers.
Modbus TCP and Modbus RTU over RS-232/RS-485 support PLC, HMI, SCADA, and industrial automation integration.
Network recording through PC Utility supports event review, monitoring, training, and operational documentation.
NTP or PC Utility time calibration helps keep event data aligned in networked deployments.
Compact 125 x 105 x 30 mm enclosure operates from 10 to 30 VDC for practical facility installation.

FAQs

What is PAlert Network Accelerometer used for?
PAlert is used for P-wave earthquake detection, local seismic switching, facility alarm triggering, and networked seismic monitoring.
Can PAlert work without a regional earthquake early warning network?
Yes. PAlert can be used locally as an earthquake detection and seismic switch device, with site-specific alarm or control actions based on local shaking and configured thresholds.
Does PAlert support industrial controls?
Yes. The datasheet lists Modbus TCP, Modbus RTU over RS-232 or RS-485, and two digital outputs for integration with PLC, HMI, SCADA, alarm, and facility control systems.
What earthquake algorithms are included?
The datasheet lists Pd, PGA, displacement, and STA/LTA algorithms.
What power and installation requirements should I plan for?
PAlert operates from 10 to 30 VDC and consumes 3.5 W at 12 VDC. Confirm power supply, wiring, enclosure, mounting, communications, and alarm threshold requirements for the project.
Can QuakeLogic help with implementation?
Yes. QuakeLogic can help review threshold settings, installation, communication architecture, related alarms, commissioning, documentation, and project-specific integration requirements.

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