Device Overview
NCD’s new C1D2-certified long-range wireless door open/closed detection sensors set an industry-first standard for IoT devices designed for hazardous environments. With C1D2 Group A, B, C, and D certification, these sensors are ideal for locations with explosive gases, dust, fibers, or flammable vapors, such as chemical plants, oil refineries, paint shops, mills, silos, and mining facilities. They support hazardous substances including Acetylene, Hydrogen, Ether, and Propane.
The sensor minimizes power usage by sleeping between transmissions and wakes every 15 minutes—or when a door or window state changes—to send updates. This design enables up to 10 years of battery life, depending on conditions and transmission intervals.
The sensor acts as a wireless push notification transmitter, detecting door/window states via a magnetic switch and sending alerts for open or closed conditions. With up to two detection probes on a 4.5-meter cable, it’s perfect for security applications requiring reliable, long-range communication. Alerts are sent when magnets move into or out of proximity with the sensors, making it ideal for monitoring doors, windows, gates, and other critical areas.
NCD offers a complete ecosystem of C1D2-certified long-range wireless sensors with open protocols for seamless software integration. Use an NCD Gateway with Node-RED to decode transmissions and connect to platforms like AWS®, Microsoft Azure®, or your own MQTT broker. The system ensures secure, private data handling while allowing integration with virtually any cloud platform.
Feature
- C1D2 Certified Vibration Sensor for Hazardous Locations
- Group A, B, C, and D Certification
- Industrial Long Range Wireless Door Sensor
- Detect Input State of up to Two Magnetic Door Sensors
- One or Two Inputs with Included Magnetic Door Sensors
- IP65 Box Ideal for Indoor or Outdoor Applications
- Encrypted Communication, 1000 ft indoor wireless range, approximately 2 miles in line of sight environments with onboard antenna
- Supports Wireless Mesh Networking
- Open Communication Protocol for Easy Software Integration,
- NO Monthly Fee or Locked Proprietary Protocols, Open Node-RED library for ease of configuration and data processing
Wireless Technology
The NCD Industrial range of sensors utilizes DigiMesh, a proprietary networking technology designed by Digi® International. It is especially suitable for IIoT applications as it provides a number of benefits over conventional wireless stacks:
- Long range – 2 miles+ in line of sight conditions, estimated 1000 ft indoors.
- Mesh networking topology – no single point of failure, self healing network with high redundancy.
- Long battery life due to low power consumption – up to 10 years
- Simplified provisioning – extending the mesh network via repeater at no additional configuration complexity
- Works in the 868MHz, 900MHz and 2.4GHz bands – worldwide region interoperability.
Battery Life
| Specifications | Minimum | Nominal | Maximum | Notes |
|---|---|---|---|---|
| Batteries | 2 | 6 | 6 | May be Powered by 2 or 6 AA Batteries |
| Battery Life 1 TPD (TPD Transmissions per Day) | 10 Years | Battery estimation is based on a 30 min interval | ||
| Battery Life 12 TPD (TPD Transmissions per Day) | 8 Years | Battery estimation is based on a 30 min interval | ||
| Battery Life 24 TPD (TPD Transmissions per Day) | 5 Year | Battery estimation is based on a 30 min interval | ||
| Battery Life 96 TPD (TPD Transmissions per Day) | 3 Year | Battery estimation is based on a 30 min interval |
The Truth About Battery Life
Under the best of circumstances, the best non-rechargeable batteries commonly available today are limited to a 10 year non-working shelf life in a room temperature environment. Factors such as actual usage, temperature, and humidity will impact the working life. Be wary of any battery claims in excess of 10 years, as this would only apply to the most exotic and expensive batteries that are not commonly available. Also note that most battery chemistries are not rated for use in extreme temperatures. NCD only uses the best Non-Rechargeable Lithium batteries available today, which are also rated for use in extreme temperatures and have been tested by our customers in light radioactive environments. Lithium batteries offer a 10 year maximum expected shelf life due to limitations of battery technology. NCD will never rate sensor life beyond the rated shelf life of the best batteries available today, which is currently 10 years.
Applications & Use-cases
The C1D2 Industrial IoT Wireless Door Open Closed Sensor is capable of monitoring key environmental metrics like CO2 levels, temperature, humidity in real-time. Such a sensor can be useful in various industries and sectors due to its ability to wirelessly transmit critical environmental data for analysis and decision-making.
C1D2 Industrial IoT Wireless Door Open Closed Sensor Applications
Industrial Safety Monitoring
In hazardous environments such as chemical plants, oil refineries, or mills, ensuring that doors and windows remain closed is critical to maintaining containment and reducing the risk of accidents. The sensors can alert management when an access point is left open or unauthorized personnel attempt entry. These notifications can prevent gas leaks, explosions, or exposure to harmful substances, ensuring both personnel safety and operational compliance with regulatory standards.
Warehouse and Inventory Security
Warehouses often store high-value or sensitive goods that require careful oversight. By deploying these sensors on storage doors and loading bays, managers can track door activity in real time. Alerts can notify them of unauthorized access, helping to prevent theft or inventory tampering. Additionally, the system can integrate with security protocols to lock down specific areas if unusual activity is detected, enhancing overall facility security.
Smart Home and Office Security
For residential or commercial buildings, the sensor can be used to monitor entry points such as doors and windows. Homeowners or office managers can receive instant notifications on their mobile devices when a door or window is opened unexpectedly, ensuring timely responses to potential intrusions. This system also integrates well with existing IoT smart home ecosystems, like Alexa or Google Home, enabling automated responses such as triggering alarms or locking doors.
Environmental and Facility Management
Facilities that house hazardous materials, such as laboratories or fuel storage sites, can use these sensors to ensure containment measures are upheld. The sensor monitors doors and windows to prevent unauthorized opening that could lead to a containment breach. By integrating with HVAC or air filtration systems, alerts from the sensor can trigger automatic adjustments to maintain a safe environment, minimizing risks of exposure or contamination.
C1D2 Industrial IoT Wireless Door Open Closed Sensor Use-cases
Oil Refinery Gate Monitoring
An oil refinery installs the sensor on access gates to track vehicle and personnel movement in restricted areas. When a gate is opened, a notification is sent to the central control room and logged in a security database. If a gate is left open beyond a specific timeframe, an automatic alarm is triggered, prompting security staff to investigate. This ensures that flammable materials are handled safely and reduces the risk of unauthorized access to sensitive areas.
Mining Facility Ventilation Control
Mining facilities often have specific ventilation systems to prevent the buildup of hazardous gases. By placing sensors on ventilation doors, operators are alerted if a door is opened or left ajar, which could disrupt airflow and pose safety hazards. This system integrates with the mine’s ventilation control to activate emergency protocols, such as redirecting airflow or notifying workers to evacuate affected areas.
High-Security Warehouse Surveillance
A logistics company managing sensitive shipments deploys sensors at key entry points, such as main warehouse doors and individual storage unit entrances. The sensors provide alerts whenever a door is accessed outside of normal business hours or by unauthorized personnel. Integration with the facility’s security cameras enables automatic recording when a door state changes, creating a comprehensive security system that reduces the risk of theft or vandalism.
Smart Factory Automation
In an automated manufacturing plant, the sensors are installed on key operational access points. If a door is opened unexpectedly, the system halts production in the affected area to ensure worker safety. Additionally, alerts can trigger emergency lockdowns, ensuring critical areas remain secure. The integration with factory IoT systems allows for seamless reporting, ensuring compliance with safety protocols and maintaining operational efficiency.
