> For the complete documentation index, see [llms.txt](https://docs.didge.io/home/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.didge.io/home/pricing/archive-temperature-sensors.md).

# \[Archive] Temperature Sensors

This is the core unit for cold chain monitoring.

<figure><img src="https://763736409-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYnSaa2Z7Ds33LciBBITN%2Fuploads%2Fs09Duz85KrLZBK3DF8sP%2FTap%20Phone.png?alt=media&amp;token=a792b967-8c79-4f55-b7da-0e57b6ea633f" alt="" width="117"><figcaption></figcaption></figure>

### LHT65S – LoRaWAN Temp & Humidity Sensor

#### Overview

> $170 per unit (USD)

The LHT65S is a long-range, battery-powered LoRaWAN Class A sensor that precisely measures ambient temperature and humidity, with support for an external temperature probe. Designed for robust, low-power IoT environments, it’s ideal for continuous cold-chain and environmental monitoring across food, logistics, facilities, and industrial sectors.&#x20;

***

#### Key Features

{% tabs %}
{% tab title="Under Bench" %}

<figure><img src="https://763736409-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYnSaa2Z7Ds33LciBBITN%2Fuploads%2FwfUpbCS594qitlH0cObF%2FIMG_0061.jpg?alt=media&amp;token=3eadae03-fbf8-415a-b8b0-9c11d0d8422d" alt=""><figcaption></figcaption></figure>
{% endtab %}

{% tab title="Cold Rooms" %}

<figure><img src="https://763736409-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYnSaa2Z7Ds33LciBBITN%2Fuploads%2FCwjTH9KiFYJ6mwZlYHWE%2FIMG_8590.jpg?alt=media&amp;token=f36fd5d0-d1a8-4968-ad90-71bebe8cfc2f" alt=""><figcaption></figcaption></figure>
{% endtab %}

{% tab title="Stand Up Units" %}

<figure><img src="https://763736409-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYnSaa2Z7Ds33LciBBITN%2Fuploads%2FKGIElvEXexyEP2wvPrRW%2FIMG_8592.jpg?alt=media&amp;token=6560bc36-c148-452c-b1a1-781c737effa6" alt=""><figcaption></figcaption></figure>
{% endtab %}

{% tab title="Service Units" %}

<figure><img src="https://763736409-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYnSaa2Z7Ds33LciBBITN%2Fuploads%2FRD8ibYbwSuiW6yyrSahJ%2FIMG_8588.jpg?alt=media&amp;token=a0e773b6-5b5d-4e91-8d41-90f65a4240de" alt=""><figcaption></figcaption></figure>
{% endtab %}
{% endtabs %}

* Built‑in Temperature & Humidity
  * Temperature Range: –40 °C to +80 °C, ±0.3 °C accuracy, 0.01 °C resolution
  * Humidity Range: 0–96 %RH, ±3 %RH accuracy, 0.04 %RH resolution
* External Sensor Support
  * Connectable external DS18B20 probe (resolution 0.0625 °C, –55 °C to +125 °C)&#x20;
* Configurable Uplink Rate
  * Default: every 20 minutes
  * Adjustable via AT commands or LoRaWAN downlink&#x20;
* Reliable Retransmission & Datalogging
  * Waits for ACK; queued messages are retried when connectivity returns
  * Stores up to \~3,300 measurements locally for later retrieval&#x20;
* Long Battery Life
  * Integrated 2400 mAh battery, up to 10 years lifespan depending on transmission frequency&#x20;
* LoRaWAN v1.0.3 Class A, Multi‑Region
  * Supports CN470, EU433/868, KR920, AS923, AU915, US915 bands
  * Remote configuration and OTA firmware updates supported&#x20;

***

#### Benefits for MFC Monitoring Platforms

* Continuous, reliable data even in low-connectivity scenarios, thanks to ACK handling and datalog feature
* Configurable update intervals allow optimization between timely alerts and battery longevity
* Support for external probes enables integration into cold rooms, freezers, or insulated environments
* Up to 10-year battery eliminates the need for frequent maintenance or replacements

***

#### Download Datasheet & Manual

Access full technical details and integration guidance here:

[Dragino LHT65S Datasheet (PDF)](https://res.cloudinary.com/dctlrnwuz/image/upload/v1676702977/Datasheet_LHT65S_LoRaWAN_Temperature_Humidity_Sensor_nzfqin.pdf)&#x20;

***


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