KS52 Temperature and Humidity SensorV1.0
Product Introduction
Product Introduction
KS52 is a LoRa-based ® The digital temperature and humidity sensor of wireless technology uses high-precision sensing elements to collect environmental temperature and humidity data in real time, and through LoRaWAN ® The protocol periodically reports measurements to the application platform.
The KS52's optional water leakage detection function enables real-time monitoring of water leakage incidents and triggers alarms to immediately notify management personnel, allowing prompt on-site response. This feature helps protect warehouses, storage facilities, factories, and similar environments, preventing loss or damage to goods and equipment caused by water intrusion.
Users can flexibly configure the sampling and reporting period through the management platform, and the default setting is to upload data every 15 minutes.
The product has 4 built-in 2700mAh high-capacity lithium sub-batteries. With low-power design, the battery life can reach more than 6 years in typical application scenarios.
Relying on LoRaWAN ® Standard protocol, KS52 has the advantages of long-distance transmission and low-power operation, and supports access to ManThink Technology and third-party LoRaWAN. ® The gateway is compatible with IoT platforms such as ThinkLink, ChirpStack, and The Things Network(TTN) to realize remote monitoring and intelligent management of environmental parameters.
KS52 with IP65 level of advanced protection, resistant to complex outdoor environment, widely applicable to intelligent industry, intelligent buildings, warehousing and logistics, agricultural monitoring and other scenarios, to meet the application requirements of all-weather environmental monitoring.
Features
- IP65
- Battery powered, 10800mA high performance lithium battery, battery life can reach more than 6 years
- COV
- Low power LCD display
- Temperature accuracy: ± 0.3 ℃
- Humidity accuracy: ± 3% RH
- Support ThinkLink/ChirpStack/TTN platform docking
- Support US902,AU915,AS923,EU868,EU433,CN470 LoRaWAN standards
Specifications
Parameters
| Interface | Joint Type | IP65 waterproof sensor (SHT41 package) |
|---|---|---|
| Leak Sensor | point/rope | |
| Wiring quantity | 0 | |
| Display | low power consumption segment code LCD | |
| Measurement Accuracy | ||
| Acquisition cycle | 5 seconds. | |
| Temperature accuracy | ± 0.3 ℃ | |
| Humidity accuracy | ±3%RH |
| Item | Value |
|---|---|
| § Wireless Parameters | |
| Protocol | standard LoRaWAN ® Agreement |
| Regional Standards | CN470/EU433/EU868/AS923/AU915/Us902 |
| Transmit power | maximum Support 22dBm ( can be changed) |
| Receiving sensitivity | -142dBm(SF=12,BW=125kHz) |
| Working mode | OTAA/ABP Class A |
| § Configuration | |
| Test /Trigger mode | the magnet 2 seconds trigger heartbeat data > 6 seconds trigger joining |
| Parameter Configuration | by NS issue instruction |
| § Physical Characteristics | |
| Power supply mode | 4*2700 mAh ER14505 lithium battery |
| Sleep current | <5uA (25 ℃ at room temperature) |
| Emission current | <110mA (22dBm transmit power) |
| Battery life | 6 years (15-minute reporting cycle, 25 ℃ at room temperature) |
| 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 |
Dimensions and Interfaces
| 1 | LoRa Antenna interface |
|---|---|
| 2 | Sensor Interface |
Product Model
Example: KS528-A1-AS923-N, 2nd Generation Temperature & Humidity Sensorr with IP65 , built-in 10800mA battery, AS923 standard
Instructions for use
Network topology
KS52 is a terminal device that conforms to the standard LoRaWAN protocol, and its normal operation depends on the complete LoRaWAN network support. The network needs to include LoRaWAN gateway and network server (NS), wherein the Gateway can choose the self-developed products of ManThink or the third-party compatible equipment, and NS must have the capability of protocol resolution and equipment management.
KS52 supports access to LoRaWAN Network platforms, including ThinkLink, ChirpStack, and The Things Network (TTN), to ensure flexible deployment and system integration. Users can use ThinkLink IoT platform to configure the object model, implement rich functions such as data parsing, business logic processing, and card view display, and quickly build application systems for actual scenarios.
A typical LoRaWAN network topology is as follows:
Working mode
Periodic collection and Upload
- KS52 collects temperature and humidity values every 5 seconds, and uploads the temperature and humidity values according to the set period. The Upload period can be set by NS delivery.
- KS52 continuously monitors the water leakage status,
- Upload alarm information after leakage event.
- After transmit the alarm information, enter the protection mechanism and no alarm will be given within 1 minute.
- 1 minute after the alarm, the detection probe level status will upload information again if there is no water leakage
_Note: It is impossible to detect the leakage state of non-conductive liquids, such as organic solvents, purified water, etc. _
COV Upload
KS52 supports COV mode, when the temperature or humidity changes exceed the threshold, you can trigger a packet of data upload. The Upload protocol format is the same as the periodic Upload format.
KS52 default COV temperature threshold is 1 ℃, and default COV humidity threshold is 5% RH.
Communication Test
Use a magnet to stick the location of QR code on KS52 to trigger 2s-4S, which can trigger a packet of measurement data.
Network access
Use a magnet to stick the location of QR code on KS52 to trigger 6s-8s, which can trigger a packet of LoRaWAN join.
Installation
Wall Mount
- Fix back panel to wall (keep back panel Arrow Up)
- Tighten the LoRa antenna to the antenna interface
- Hitch the temperature and humidity sensor on the back plate (after aligning the back groove of the sensor with the convex part of the back plate, slide it down)
Single point type water immersion installation diagram:
① Hang the water detector sensor vertical wall on the wall, and the back of the water leakage sensor is installed with a back plate for fixing.
② Tighten the LoRa antenna
③ The root of the water immersion probe shall be closely attached to the wall surface with double-sided adhesive, and the height from the ground shall be 10cm.
_Note: Please ensure that the installation is covered by the Gateway when leakage _
Rope type water immersion installation diagram:
① Hang the water leakage vertical wall on the wall, and the back of the water leakage sensor is equipped with a back plate for fixing.
② Tighten the LoRa antenna
③ Water leakage detection extension rope
preparation tools: Impact drill, drill bit, Phillips screwdriver, Buckle
use an electric drill to drill holes in the installation position in advance. The left and right sides of the water leakage detector will be equipped with installation holes, which will be fixed by screws. Then connect the extension cord, and use the buckle to fix the extension cord at the position where the water leakage needs to be monitored.
Communication Protocol
Data Items and Identifiers
- [x] LoRaWAN port number = 11
KS52 supports only one data format and sends data periodically according to the set period. When a COV event occurs, it triggers one frame of uplink data.
Example (hex):21 07 03 0C 6E A005 00 F604 8C03 DB 00 00
| serial Number | data Item | example | start Address | length | description |
|---|---|---|---|---|---|
| 1 | version Number | 0x21 | 0 | 1 byte | KS52 fixed to 0x21 |
| 2 | control Word | 0x07 | 1 | 1 byte | KS52 fixed to 0x07 |
| 3 | identifier | 0x03 | 2 | 1 byte | KS52 fixed to 0x03 |
| 4 | hardware version | 0x0C | 3 | 1 byte | decimal 10 for V1.0, and so on |
| 5 | software version | 0x6E | 4 | 1 byte | decimal 100 for V1.00, and so on |
| 6 | reporting Interval | 0x05A0 | 5 | 2 bytes | little Endian , Unit: Minutes |
| 7 | status of device | 0x00 | 7 | 1 byte | bit0: sensor status |
| 1-fault, 0-normal | |||||
| bit1:LoRaWAN mode | |||||
| 1-ClassC,0-ClassA | |||||
| 8 | temperature | 0x04F6 | 8 | 2 bytes | Parameter value = (ambient temperature *-1000)/10(℃) |
| 9 | humidity | 0x038C | 10 | 2 bytes | small Endian Mode, Unit: 0.1%RH |
| 10 | battery voltage | 0xDB | 12 | 1 byte | ($v * 1.6/254+2) unit is V |
| 11 | RSSI | 0x00 | 13 | 1 byte | parameter value = RSSI-160(dBm) |
| 12 | SNR | 0x00 | 14 | 1 byte | actual value of SNR (dB) |
ThinkLink reference model
Log in to https://thinklink.manthink.cn\n○ Search for KS52 in the model menu\n○ add using template MT-KS52
Parameter modification
KS52 supports remote parameter configuration by sending downlink commands through a LoRaWAN Network Server (NS).
Parameter modification uses the ManThink Technology application-layer general protocol. All parameter configuration commands are transmitted via LoRaWAN port 214.
- Communication port: 214
- Function code: 0xCF (Modify service parameters)
- Multi-byte parameters: Little-endian format
- Successful parameter configuration response:
6F 01 00Parameter Configuration Address Table
| Index | data Item | default Value | start Address | length | description |
|---|---|---|---|---|---|
| 1 | data period | 900 | 40 | 4 bytes | upload cycle, in seconds |
| 2 | measure period | 5 | 142 | 2 bytes | little Endian mode, in seconds |
| 3 | temperature COV | 10 | 144 | 1 byte | magnification 0.1, unit ℃ |
| 4 | humidity COV | 20 | 145 | 1 byte | magnification 0.1, unit: RH% |
Parameter Modification Examples
Modify Upload Interval (Single Command)
Example: Set the upload interval to 900 seconds
- Hex representation:
0x00000384 - Little-endian format:
84 03 00 00
Command:
CF 06 28 04 84 03 00 00Modify Collection Interval and COV Parameters (Continuous Addresses, Single Command)
Example parameter settings:
| Parameter | Target Value | Written Value |
|---|---|---|
| Collection interval | 5 seconds | 05 00 |
| Temperature COV | 1.0 °C | 0A |
| Humidity COV | 2.0 %RH | 14 |
- Start address: 142 (0x8E)
- Continuous length: 4 bytes (142–145)
Command:
CF 06 8E 04 05 00 0A 14Example of Concatenated Downlink Commands
On the NS platform, multiple parameter modification commands can be concatenated into a single downlink payload. The device will parse and execute them sequentially.
CF 06 28 04 84 03 00 00 CF 06 8E 04 05 00 0A 14Notes
- All parameter configurations must use LoRaWAN port 214
- KS52 is a Class A device and can only receive downlink parameter configurations after an uplink transmission
- If no response is received after parameter configuration, please check the device online status and gateway coverage
Contact Us
Website: www.manthink.cn
Email: info@ manthink.cn
Tel: +86 15810684257