# KS31 Four-channel analog collector — ManThink

> KS31 — Connect instruments and sensors with analog outputs and report samples over LoRaWAN, retaining existing measuring equipment.

Canonical: https://www.manthink.cn/en/products/sensors/ks31/

MANTHINK / KS31 
![KS31 Four-channel analog collector — product image](https://www.manthink.cn/assets/ks31.png)
Product image · Configuration depends on the ordered model

SENSE / LoRaWAN sensors

Turn existing current and voltage signals into wireless data.

Connect instruments and sensors with analog outputs and report samples over LoRaWAN, retaining existing measuring equipment.

- **Input signal**: 4–20 mA or 0–10 V

- **Channels**: 4 channels

- **Power options**: 10800 mAh battery / DC 5–24 V, by model

- **Ingress protection**: IP65

[View specifications  ↓](https://www.manthink.cn/en/products/sensors/ks31/#specifications) [Official manual](https://www.think-link.net/docs/zh/Device/LoRaWANSensor/ks31)

01 / SPECIFICATIONS

## Check every specification that matters.

Start with interfaces, power and installation conditions.

[Read the full technical manual](https://www.think-link.net/docs/zh/Device/LoRaWANSensor/ks31)

|   |   |
| --- | --- |
| Input signal | 4–20 mA or 0–10 V |
| Channels | 4 channels |
| Power options | 10800 mAh battery / DC 5–24 V, by model |
| Ingress protection | IP65 |
| Wiring | PG7, 4 inputs + 1 GND |
| Operating mode | LoRaWAN Class A，OTAA / ABP |
| Mounting | Wall mount |
| Dimensions | 120 × 72 × 28 mm |

Source: [KS31 Official manual](https://www.think-link.net/docs/zh/Device/LoRaWANSensor/ks31)  · Reviewed 2026-09-25. Confirm options, regional frequency bands and full model codes before ordering.

02 / CONNECTION

## Match the interface. Then connect the equipment.

Match physical interfaces and application protocols separately.

01 

### Analog inputs

Four inputs share one GND; connect current or voltage signals according to the model.

02 

### Wireless connectivity

The LoRa antenna and gateway bands must match; data is reported over LoRaWAN.

For terminal positions, wire assignments and installation, follow the [official wiring instructions](https://www.think-link.net/docs/zh/Device/LoRaWANSensor/ks31)  .

03 / CONFIGURATION

## Choose a configuration that fits your site.

01 Type A is 4–20 mA; type B is 0–10 V. A single configuration does not support both input types.

02 Battery and external DC power are separate order configurations; verify external sensor power separately.

[Visit the official store](https://manthink.taobao.com/) [Ask about KS31 ↗](mailto:info@manthink.cn?subject=KS31+Product+selection+inquiry)

The store and manuals open in a new tab. Available configurations are subject to confirmed order details.

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[Back to LoRaWAN sensors ↗](https://www.manthink.cn/en/products/sensors/)

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THE NEXT CONNECTION / APPLICATIONS START HERE

## Once your devices are connected, let ThinkLink take it from there.

A general-purpose, AI-powered IoT platform with native LoRaWAN.
LoRaWAN / 4G connectivity, AI operations and micro-app development. Free self-hosting, one-command installation and customizable branding.

[Get the install command ↓](https://www.manthink.cn/en/#thinklink-deploy) 

[Discover ThinkLink](https://www.think-link.net/zh/) [ThinkLink App](https://www.think-link.net/zh/mobile/thinklink/) [TapLink](https://www.think-link.net/zh/mobile/taplink/)

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Micro-app demo · Try it online ↗](https://thinklink.manthink.cn/tkl-dashboard-web/#/custom-page-share/demo/91vpc9x9mqsx75ii)