Product Description
The Dragino LDS02 is a LoRaWAN door contact sensor.
It detects the open/closed status of doors and uploads data to an IoT server via the LoRaWAN network.
Users can check the door status, opening time and opening count on the IoT server.
1. Powered by 2 AAA batteries, the LDS02 is engineered for long-term operation.
These batteries support approximately 16,000 to 70,000 uplink packets.
When the batteries run out, users can easily open the housing and replace them with 2 standard AAA batteries.
2. The LDS02 transmits data periodically on a daily basis and reports every door open/close event.
It also counts door opening events and calculates the duration of the latest door opening.
Users can disable uplink transmission for each switching event.
In this case, the device records all opening events locally and reports them periodically.
3. The LDS02 transmits data periodically on a daily basis and reports every door open/close event.
It also counts door opening events and calculates the duration of the latest door opening.
Users can disable uplink transmission for each switching event.
In this case, the device records all opening events locally and reports them periodically.
4. The LDS02 features a door-open alarm function.
Once configured, the device triggers an alarm if a door remains open longer than the preset duration.
Functional Features
END DEVICE GATEWAY NETWORK SERVER
INTERNET
LoRaWAN
LoRa UDP/ WebSockets
5. Each LDS02 is preloaded with a unique set of keys for LoRaWAN registration.
Register these keys on your LoRaWAN server, and the device will connect automatically after power-on.
The diagram below illustrates how the LDS02 connects to a typical LoRaWAN network server.
· LoRaWAN Class A v1.0.3
· Frequency Bands: EU868、IN865、KR920、AS923、AU915、US915
· Door open/closed detection
· Door open/close statistics
· Powered by 2 × AAA LR03 batteries
· AT commands for parameter configuration
· Periodic uplink reporting for open/close events
· Remote parameter configuration via LoRa downlink
· Firmware upgrade available via programming port
Product Display
How to Install the LDS02
The LDS02 consists of two parts: the sensor and the magnet. Both components can be mounted onto surfaces using screws or double-sided adhesive tape. For example, to monitor the open/closed state of a door, install the sensor unit on the door frame and the magnet unit on the door leaf.
Mounting with Screws:
Each component comes with a removable base cover that can be taken off the housing. Remove the base covers from both the sensor housing and the magnet housing respectively. You will find two screw holes on each base cover for installation. First, fasten the base covers to the surface with screws, and keep the gap between the two parts as small as possible. Then snap the upper half of the housing onto the lower half. You will hear a "click" sound once they are securely latched together.
Mounting with Double-Sided Adhesive Pads:
The double-sided adhesive pads supplied with the LDS01 feature pre-cut sections. Attach one section to the bottom of the magnet housing (peel off one side of the protective liner first). Attach the remaining section to the bottom of the sensor housing. Once the tape is applied, remove the protective backing paper and fasten both housings to the surface, keeping the gap between them to a minimum.
When installing the LDS02, follow the orientation shown below so that the markers align closely when the door is closed.
Open/Close Threshold Range (minimum gap between the sensor housing and magnet housing): approx. 10 mm
Application
Application Fields、Smart Buildings & Home Automation
Logistics and Supply Chain Management、Smart Metering
Smart Agriculture、Smart City、Smart Factory
· Packing List: 1 × LDS02 (batteries not included)
· Dimensions & Weight: Dimensions: 40 × 15 × 15 mm Weight: 77 g
LED Status Indicator
Action | LED Status |
Power On | Green LED on for 1 second, Red LED on for 1 second, Blue LED on for 1 second |
Connected Successfully | Green LED on for 5 seconds |
Sending Uplink Message | Green LED blinks once |
Receiving Downlink Message | Blue LED blinks once |
Dimensional Drawin
Product parameters
Parameter | Value |
Model | LDS02 |
Communication Protocol | LoRaWAN Class A v1.0.3 |
LoRa Chip | SX1262 |
Frequency Bands | EU868、IN865、KR920、AS923、AU915、US915 |
Detection Method | Reed switch for door open/close detection |
Power Supply | 2 × AAA LR03 batteries (batteries not included) |
Battery Life | Approx. 16,000～70,000 uplink packets |
Uplink Mode | Event-triggered & periodic uplink |
Alarm Function | Door-open duration alarm |
Configuration | AT commands / Remote configuration via LoRa downlink |
Firmware Upgrade | Upgradable via programming port |
Operating Temperature | -10℃～50℃ |
Dimensions | 40 × 15 × 15 mm |
Weight | 77 g |
Package Contents | 1 × LDS02 (batteries not included) |
