Battery-powered waterproof RS-485 Data Logger
KC21-RS-485 Data Logger of LoRaWAN
KC21 is a high-performance, low-power, battery-powered LoRaWAN data transmission unit (DTU) independently developed by ManThink, with highly flexible configuration capabilities. The product integrates high-performance MCU and LoRa RF chips and connects to external devices through standard RS-485 interfaces, using LoRaWAN ® The protocol stably uploads business data to the IoT application platform.
Based on advanced LoRa ® Wireless communication technology, KC21 support standard LoRaWAN ® It has the advantages of long-distance transmission, ultra-low power consumption and strong anti-interference ability. The device has 4 built-in 14505 lithium sub-batteries, which can ensure long-term stable operation in harsh environments and is suitable for remote monitoring scenarios where wiring is difficult or power supply is limited.
KC21 is compatible with ManThink and The third-party LoRaWAN gateway, and supports access to mainstream Internet of Things platforms such as ThinkLink, ChirpStack, The Things Network(TTN), etc. to realize data collection and remote control of various RS-485 interface devices.
In addition, KC21 supports external power supply function, can provide stable 15V output voltage for external sensors, simplify field deployment, and is especially suitable for meter reading systems such as water meters and gas meters.
The product innovation is equipped with Edge-Bus(EB) virtual machine, which supports firmware generation through EB compilation environment and remote update to devices via FUOTA (Firmware Over-the-air upgrade). With the help of EB virtual machine, users can quickly adapt a variety of serial port protocols (such as Modbus, DL/T645, CJ/T188, etc.), and locally implement core business logic processing such as COV (change reporting), alarm triggering, data reorganization, etc., significantly improving system response efficiency and communication reliability.
With its powerful edge computing capability, flexible Protocol Adaptation and excellent low-power design, KC21 is widely used in the Internet of Things fields such as smart water, energy management, and industrial monitoring. It is an intelligent and maintenance-free sensor network. Ideal choice.
Features
- IP65 protection rating
- Support RS-485 interface
- 4× 2700 mA-time ER14505 lithium sub-batteries, 10800mAh of electricity
- Support power supply to sensor devices
- Support for EB virtual machines
- Support remote upgrade via LoRaWAN communication
- Support ThinkLink/ChirpStack/TTN platform docking
- Support US902,AU915,AS923,EU868,EU433,CN470 LoRaWAN standards
- Compatible with all RS-485-based communication protocols
Hardware Specifications
Interface | Joint Type | 1 PG7 interface |
Wiring quantity | 4 leads (VCC,GND,485A,485B) battery version, VCC and GND for external power supply DC5-12V version, VCC and GND for powering KC21 | |
Display | None | |
Wireless Parameters
| Communication Protocol | Standard LoRaWAN ® Agreement |
Regional Standards | CN470/EU433/EU868/AS923/AU915/Us902 | |
Transmit power | Maximum Support 22dBm (parameter can be changed) | |
Receiving sensitivity | -142dBm(SF=12,BW=125kHz) | |
Network access /Working mode | OTAA/ABP Class A (battery version) ClassC (DC5-12V) | |
Agreement /Configuration | Test /Trigger mode | Magnet trigger, 2 seconds trigger heartbeat data,>6 seconds trigger network |
Parameter Configuration | By NS issue instruction | |
Physical Characteristics
| Power supply mode | Built-in battery 10800mAH/(DC5-12V) normal power supply |
Sleep current | <5uA | |
Emission current | <110mA (22dBm transmit power) | |
Working Temperature | -40°C ~85°C | |
Relative humidity | ≤95% (no condensation) | |
Protection level | IP65 | |
Material & Color | ABS + PC, White | |
Dimensions | 120mm * 72mm * 28mm | |
Installation method | Wall Hanging |
Application Scenarios
Field Environmental Monitoring
Outdoor Asset Tracking
Smart Agriculture
Urban Pipeline Monitoring