Choosing a Door Sensor for LoRaWAN Monitoring
Compare IoT hardware for South African projects.
Which door sensor fits the contact arrangement, reporting need and power option?
Choose among 10 door-sensor products by comparing the stated sensing arrangement, reporting role and power configuration. DS03A models state datalog and open-alarm functions, LDS02 states door open/close detection, and LHT65 door-sensor variants include a stated one-metre metal door sensor. All representative models use LoRaWAN.
Match the opening and reporting role
Who is this guide for?
Use this guide when a LoRaWAN project needs to report a door or other opening state. The useful differences are the explicitly stated sensing arrangement, reporting role and power configuration, not an assumed security or alarm-system capability.
DS03A reporting choices
DS03A-LB and DS03A-LS state datalog and open-alarm functions. Their stated power arrangements differ: DS03A-LB lists an 8,500 mAh battery, while DS03A-LS lists a solar panel plus a 3,000 mAh Li-ion battery.
Select between them only after confirming the required reporting behaviour, contact arrangement, mounting and exact power setup.
LDS02 open and close detection
LDS02 states door open/close detection, LoRaWAN and two AAA batteries. Treat it as its own open/close-detection option and confirm the physical installation details before choosing it.
LHT65 door-sensor arrangement
LHT65N-DS and LHT65S-DS state an LHT65N unit with a one-metre metal door sensor. This is an explicit sensor arrangement, but it does not establish compatibility with an alarm panel or any unstated installation condition.
Decision table
| Door-monitoring need | Product to investigate | Stated arrangement | Confirm next |
|---|---|---|---|
| Datalog and open-alarm role with battery power | DS03A-LB | LoRaWAN, datalog, open alarm and 8,500 mAh battery | Contact arrangement, mounting and reporting requirement |
| Datalog and open-alarm role with solar power | DS03A-LS | LoRaWAN, datalog, open alarm, solar panel and 3,000 mAh battery | Solar installation, contact arrangement and reporting requirement |
| Door open/close detection | LDS02 | LoRaWAN and two AAA batteries | Physical placement and exact reporting requirement |
| One-metre metal door sensor | LHT65N-DS or LHT65S-DS | LHT65N with stated one-metre metal door sensor | Contact placement, wiring and exact SKU |
Common questions
When should I investigate DS03A?
Investigate DS03A when its stated datalog and open-alarm functions match the project. Then compare its exact battery or solar power arrangement.
What is stated for LDS02?
LDS02 states door open/close detection, LoRaWAN and two AAA batteries. Confirm the physical installation and reporting requirement separately.
What contact arrangement is stated for the LHT65 door variants?
LHT65N-DS and LHT65S-DS state an LHT65N unit with a one-metre metal door sensor. Do not infer alarm-panel compatibility from that description.
What should I confirm before ordering?
Confirm the opening and contact arrangement, required event reporting, exact power configuration, LoRaWAN availability, regional configuration, mounting and the exact SKU.
What should I compare?
- Choose DS03A only when its stated datalog and open-alarm role matches the reporting requirement.
- Choose LDS02 when its stated door open/close detection and two-AAA-battery arrangement fit the project.
- Choose an LHT65 door-sensor variant when the stated one-metre metal door sensor is the required contact arrangement.
- Compare only power arrangements explicitly stated for the exact SKU, including battery and solar variants where shown.
- Confirm LoRaWAN coverage, regional configuration, mounting, wiring or contact placement, and the exact SKU before ordering.
How do the options differ?
DS03A-LB and DS03A-LS state datalog and open-alarm functions, with battery and solar power arrangements respectively. LDS02 states door open/close detection and two AAA batteries. LHT65N-DS and LHT65S-DS state an included one-metre metal door sensor. These facts establish only the listed functions and arrangements; confirm any other project requirement separately.
A practical decision path
- Define whether the project needs a stated open alarm and datalog role, basic open/close detection, or an included one-metre metal door sensor.
- Shortlist the exact model whose stated contact or sensing arrangement matches the opening being monitored.
- Compare only the power configuration and installation details stated for that exact SKU.
- Confirm LoRaWAN availability, regional configuration, mounting or wiring details and the exact SKU before requesting a quote.
Compare products
View up to 10 products for this guide.
| Compare | DS03A-LB | DS03A-LB2 | DS03A-LS | DS03A-KS-GE | DS03A-KS-1T | DS03A-KN-GE | DS03A-KN-1T | LDS02 | LHT65N-DS | LHT65S-DS |
|---|---|---|---|---|---|---|---|---|---|---|
| Primary function | Door Sensor | Door Sensor | Door Sensor | Door Sensor | Door Sensor | Door Sensor | Door Sensor | Door Sensor | Door Sensor | Door Sensor |
| Connectivity | LoRaWAN | LoRaWAN | LoRaWAN | LTE CAT 1 | LTE CAT 1 | LTE CAT 1 | LTE CAT 1 | LoRaWAN | LoRaWAN | LoRaWAN |
| Power | 8500 mAh battery | 19000 mAh battery | a solar panel and 3000 mAh Li-ion battery | a solar panel and 3000 mAh Li-ion battery | a solar panel and 3000 mAh Li-ion battery | 1000 mAh rechargeable Li-ion battery | 1000 mAh rechargeable Li-ion battery | Not stated | Not stated | Not stated |
| Sensor or probe arrangement | Not stated | Not stated | Not stated | Not stated | Not stated | Not stated | Not stated | Not stated | the stated lht65n + 1 meter metal door sensor | the stated lht65n + 1 meter metal door sensor |
| Price | R 1 534,80 | R 1 698,95 | R 1 684,18 | R 1 974,49 | R 2 614,68 | R 1 833,79 | R 2 473,98 | R 495,50 | R 1 002,02 | R 1 087,14 |
What should I do next?
Move from this decision guide to the most relevant application, family, comparison or enquiry path.