# MWTH 301 Wi-Fi Temperature Humidity Sensor

URL: https://www.macnman.com/docs/product/wifi/sensors/temperature/wlth-temp-humi-sensor-datasheet
Section: Datasheets › Wifi › Sensors › Temperature

# MWTH 301 Wi-Fi Temperature & Humidity Sensor Datasheet

## Product Overview

**MWTH 301** is a compact, **low‑power Wi‑Fi temperature and humidity sensor** designed for accurate indoor and semi‑industrial environmental monitoring where direct IP connectivity is required. It enables real‑time climate data transmission over standard Wi‑Fi networks without the need for gateways or long‑range network infrastructure.

Built using industrial‑grade sensing elements, MWTH 301 delivers fast response, low drift, and stable temperature and humidity measurements over long operating periods. Its optimized low‑power architecture supports battery‑operated deployments using intelligent sleep‑wake cycles, making it suitable for continuous monitoring with minimal maintenance.

The sensor securely transmits data to **local servers, on‑premise dashboards, or cloud platforms** using standard protocols such as **MQTT, HTTP, and HTTPS**. Local BLE support allows easy provisioning, diagnostics, and configuration through the Macnman Maya mobile application.

Housed in a rugged, ingress‑protected enclosure, MWTH 301 is ideal for **smart buildings, HVAC systems, cold rooms, warehouses, laboratories, and industrial indoor environments** where reliable Wi‑Fi connectivity, low latency, and accurate environmental data are essential.

| ![MWTH 301 compact Wi-Fi temperature and humidity sensor product view 1](/img/lorawan/sensors/macsync/mini-lorawan-temperature-humidity-sensor.webp) | ![MWTH 301 compact Wi-Fi temperature and humidity sensor front view](/img/lorawan/sensors/macsync/lorawan-compact-temp-humidity-sensor-front-view.webp) |
|--------------------------------|--------------------------------|
| ![MWTH 301 compact Wi-Fi temperature and humidity sensor side view](/img/lorawan/sensors/macsync/lorawan-compact-temp-humidity-sensor-side-view.webp) | ![MWTH 301 compact Wi-Fi temperature and humidity sensor top view](/img/lorawan/sensors/macsync/lorawan-compact-temp-humidity-sensor-top-view.webp) |

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## Download Center

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  <a href="/docs/downloads/mwth-301-wifi-temperature-humidity-sensor-datasheet.pdf" 
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    <div className="icon">📂</div>  
    <div>
      <strong>Download Datasheet</strong>
      <p>Download the PDF version of the datasheet.</p>
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  className="icon-card">
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    <div>
      <strong>Decoders</strong>
      <p>Click here to view the decoders for  MWTH 301</p>
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## Key Features

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  <strong>High‑Accuracy Temperature & Humidity Sensing</strong>
  Precision temperature and humidity measurements using industrial‑grade sensing elements for reliable environmental monitoring.
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  <strong>Low‑Power Wi‑Fi Connectivity</strong>
  Optimized Wi‑Fi communication with intelligent sleep‑wake cycles for battery‑efficient operation.
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  <strong>Direct IP‑Based Communication</strong>
  Transmits data directly to local servers or cloud platforms over Wi‑Fi without gateways.
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  <strong>Standard IoT Protocol Support</strong>
  Supports MQTT, HTTP, and HTTPS for easy integration with dashboards, BMS, and IoT platforms.
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  <strong>Battery‑Operated Design</strong>
  Enables flexible deployment in locations where wired power is unavailable.
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  <strong>Fast Response & Long‑Term Stability</strong>
  Low sensor drift and stable performance over extended operating periods.
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  <strong>Local Configuration via BLE</strong>
  Easy provisioning, diagnostics, and configuration using the Macnman Maya mobile application.
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  <strong>Secure Wireless Communication</strong>
  WPA2 / WPA3 Wi‑Fi security with TLS/SSL encrypted data transmission.
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  <strong>Compact & Lightweight Form Factor</strong>
  Small enclosure suitable for wall or ceiling mounting in indoor environments.
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  <strong>Ingress‑Protected Enclosure</strong>
  IP‑rated housing designed for reliable operation in industrial and commercial indoor environments.
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  <strong>Smart Data Reporting</strong>
  Supports time‑based, threshold‑based, and event‑driven reporting to optimize power consumption.
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  <strong>Smart Building & HVAC Ready</strong>
  Ideal for climate monitoring, comfort analysis, and energy optimization applications.
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## Suited Applications

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    <strong>Smart Buildings & Offices</strong>
    Continuous indoor temperature and humidity monitoring for comfort optimization, energy efficiency, and building management systems.
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    <strong>HVAC Monitoring & Optimization</strong>
    Tracks temperature and humidity across HVAC zones to improve performance, efficiency, and preventive maintenance.
  </div>

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    <strong>Cold Rooms & Cold Chain Storage</strong>
    Reliable environmental monitoring for cold rooms, vaccine storage, food warehouses, and pharmaceutical storage areas.
  </div>

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    <strong>Warehouses & Storage Facilities</strong>
    Ensures controlled temperature and humidity conditions for FMCG, electronics, raw materials, and finished goods.
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    <strong>Laboratories & Clean Rooms</strong>
    Accurate climate monitoring for research labs, testing facilities, and controlled indoor environments.
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    <strong>Industrial Indoor Areas</strong>
    Monitors environmental conditions inside factories, production floors, and utility rooms with existing Wi‑Fi coverage.
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    <strong>Data Centers & Server Rooms</strong>
    Tracks temperature and humidity to protect IT infrastructure and ensure operational reliability.
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    <strong>Retail & Commercial Spaces</strong>
    Maintains indoor comfort and monitors climate conditions in malls, stores, and commercial buildings.
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    <strong>Hospitals & Healthcare Facilities</strong>
    Supports temperature and humidity monitoring in wards, pharmacies, equipment rooms, and storage areas.
  </div>

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## Technical Specifications
<div className="spec-block">
  <div className="spec-block-title">
    General <br /> Specifications
  </div>
  <div className="spec-block-details">
    <p className="label">Part Order Number</p>
    <p className="value"> MWTH 301</p>
    <br />
    <p className="label">Product Brand</p>
    <p className="value">Macnman Technologies Pvt Ltd</p>
  </div>
</div>

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<div className="spec-block">
  <div className="spec-block-title">
    Temperature <br /> Measurement
  </div>
  <div className="spec-block-details">
    <p className="label">Range</p>
    <p className="value">-30°C to +70°C</p>
    <br />
    <p className="label">Accuracy</p>
    <p className="value">0°C to +70°C: ±0.3°C &amp; -30°C to 0°C: ±0.6°C</p>
    <br />
    <p className="label">Resolution</p>
    <p className="value">0.1°C</p>
    <br />
    <p className="label">Calibration</p>
    <p className="value">Factory calibrated</p>
    <br />
    <p className="label">Probe Options</p>
    <p className="value">Internal &amp; External Both Options</p>
  </div>
</div>

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<div className="spec-block">
  <div className="spec-block-title">
    Humidity <br /> Measurement
  </div>
  <div className="spec-block-details">
    <p className="label">Range</p>
    <p className="value">0% to 100% RH</p>
    <br />
    <p className="label">Accuracy</p>
    <p className="value">10% to 90% RH: ±3% RH &amp; &lt;10% or &gt;90% RH: ±5% RH</p>
    <br />
    <p className="label">Resolution</p>
    <p className="value">0.5% RH</p>
    <br />
    <p className="label">Calibration</p>
    <p className="value">Factory calibrated</p>
  </div>
</div>

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<div className="spec-block">
  <div className="spec-block-title">
    Pressure <br /> Measurement*
  </div>
  <div className="spec-block-details">
    <p className="label">Range</p>
    <p className="value">300 hPa to 1100 hPa</p>
    <br />
    <p className="label">Accuracy</p>
    <p className="value">±1.0 hPa (typical at 25°C, 300–1100 hPa)</p>
    <br />
    <p className="label">Resolution</p>
    <p className="value">0.1 hPa</p>
    <br />
    <p className="label">Long‑Term Stability</p>
    <p className="value">≤ ±1 hPa/year</p>
    <br />
    <p className="label">Calibration</p>
    <p className="value">Factory calibrated</p>
  </div>
</div>

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<div className="spec-block">
  <div className="spec-block-title">
    Wireless <br /> Communication
  </div>
  <div className="spec-block-details">
    <p className="label">Wi‑Fi Standards</p>
    <p className="value">IEEE 802.11 b/g/n/ac</p>
    <br />

    <p className="label">Frequency Bands</p>
    <p className="value">2.4 GHz & 5 GHz (Dual‑Band)</p>
    <br />

    <p className="label">Operating Modes</p>
    <p className="value">Station Mode (Client)</p>
    <p className="value">Access Point Mode (Configuration)</p>
    <br />

    <p className="label">Network Protocols</p>
    <p className="value"> MQTT, HTTP, HTTPS</p>
    <br />

    <p className="label">Security</p>
    <p className="value">WPA2‑PSK / WPA3</p>
    <p className="value">TLS / SSL Encrypted Communication</p>
    <br />

    <p className="label">IP Configuration</p>
    <p className="value">DHCP / Static IP</p>
    <br />

    <p className="label">Typical Indoor Range</p>
    <p className="value">Up to 100 m (environment dependent)</p>
    <br />
  </div>
</div>

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<div className="spec-block">
  <div className="spec-block-title">
    LED <br /> Status
  </div>
  <div className="spec-block-details">
    <p className="label">LED Type</p>
    <p className="value">1 Internal Multi-Color LED</p>
    <br />
    <p className="label">Solid Blue</p>
    <p className="value">Device is connected with Maya App</p>
    <br />
    <p className="label">Flashing Blue</p>
    <p className="value">OTA (Over-the-Air) update in progress</p>
    <br />
    <p className="label">Slow Blinking Green</p>
    <p className="value">Attempting to connect to the network</p>    
    <br />
    <p className="label">Single Red Blink</p>
    <p className="value">A confirmed parameter of MacSync is being modified</p>
    <br />

  </div>
</div>

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<div className="spec-block">
  <div className="spec-block-title">
    Device <br /> Configuration
  </div>
  <div className="spec-block-details">
    <p className="label">Configuration</p>
    <p className="value">Via Macnman Maya Android App</p>
    <br />
    <p className="label">Uplink Modes</p>
    <p className="value">Time Based / Threshold Based / Sampling Based</p>
    <br />
    <p className="label">Stored Records*</p>
    <p className="value">30,000 Records</p>
    <br />
    <p className="label">Remote Configuration</p>
    <p className="value">JSON Format Data - from server</p>    
    <br />
  </div>
</div>

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<div className="spec-block">
  <div className="spec-block-title">
    Supported <br /> Cloud & Platforms
  </div>
  <div className="spec-block-details">
    <p className="label">Deployment Models</p>
    <p className="value">On-Premise Servers</p>
    <p className="value">Private Cloud Deployments</p>
    <p className="value">Public Cloud Platforms</p>
    <br />

    <p className="label">IoT Cloud Platforms</p>
    <p className="value">AWS IoT Core</p>
    <p className="value">Microsoft Azure IoT Hub</p>
    <p className="value">Google Cloud (via MQTT / HTTPS)</p>
    <p className="value">Custom IoT Platforms</p>
    <br />

    <p className="label">Integration Methods</p>
    <p className="value">MQTT Brokers</p>
    <p className="value">REST / HTTPS APIs</p>
    <p className="value">Webhooks</p>
    <br />

    <p className="label">Enterprise Systems</p>
    <p className="value">SCADA Systems</p>
    <p className="value">BMS / IBMS Platforms</p>
    <p className="value">Data Lakes & Analytics Engines</p>
  </div>
</div>

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<div className="spec-block">
  <div className="spec-block-title">
    Physical <br /> Characteristics
  </div>
  <div className="spec-block-details">
    <p className="label">Power Supply</p>
    <p className="value">9-36 V DC</p>
    <br />
    <p className="label">Operating Temperature</p>
    <p className="value">-40°C to +80°C</p>
    <br />
    <p className="label">Humidity Range</p>
    <p className="value">0% to 100% RH (non-condensing)</p>
    <br />
    <p className="label">Ingress Protection</p>
    <p className="value">IP65 standard (IP67 optional variant)</p>    
    <br />
    <p className="label">Housing Material</p>
    <p className="value">Glass field Nylon</p>    
    <br />
    <p className="label">Color</p>
    <p className="value">Matte White</p>    
    <br />
    <p className="label">Weight</p>
    <p className="value">~110g</p>    
    <br />
    <p className="label">Mounting Options</p>
    <p className="value">Pole Mounting / Wall Mounting</p>    
    <br />
  </div>
</div>

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<div className="spec-block">
  <div className="spec-block-title">
    Electrical <br /> Characteristics
  </div>
  <div className="spec-block-details">
    <p className="label">Input Voltage Range</p>
    <p className="value">9-36 V DC (External Supply)</p>
    <br />
    <p className="label">Power Consumption</p>
    <p className="value">~100 µA in sleep mode</p>
    <p className="value">~150 mA during transmission</p>
    <br />
    <p className="label">Input Impedance</p>
    <p className="value">>10 MΩ for voltage inputs</p>
    <br />
  </div>
</div>

<div class="faint-line"></div>

<div className="spec-block">
  <div className="spec-block-title">
    Communication <br /> Options
  </div>
  <div className="spec-block-details">
    <p className="label">BLE Connectivity</p>
    <p className="value">For local configuration and diagnostics via Maya App</p>
    <br />
    <p className="label">Cloud Protocols</p>
    <p className="value">MQTT / HTTPS </p>
    <br />
    <p className="label">Serial Interface</p>
    <p className="value">RS485 Modbus RTU support (optional)</p>
    <br />
  </div>
</div>

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<div className="spec-block">
  <div className="spec-block-title">
    Certifications & <br /> Compliance
  </div>
  <div className="spec-block-details">
    <p className="label">WPC</p>
    <p className="value">Compliant</p>
    <br />
    <p className="label">RoHS</p>
    <p className="value">Conforms to RoHS directive</p>
    <br />
  </div>
</div>

<div class="faint-line"></div>

<div className="spec-block">
  <div className="spec-block-title">
    Security & <br /> Encryption
  </div>
  <div className="spec-block-details">
    <p className="label">Data Encryption</p>
    <p className="value">AES-256 end-to-end encryption</p>
    <br />
    <p className="label">Authentication</p>
    <p className="value">OTAA activation modes</p>
    <br />
    <p className="label">Firmware Protection</p>
    <p className="value">Secure boot and signed OTA updates</p>
    <br />
  </div>
</div>

## MWTH 301 Variants
<table className="parameter-table">
  <thead>
    <tr>
      <th>Variant Name</th>
      <th>Power Source</th>
      <th>Battery Capacity</th>
      <th>Solar Support</th>
      <th>External Flash</th>
      <th>Ideal For</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td> MLTH 301-BO</td>
      <td>Battery</td>
      <td>09 Ah</td>
      <td>✖️</td>
      <td>✔️</td>
      <td>Remote or portable deployments with low power</td>
    </tr>
  </tbody>
</table>

## What's in the Box?
Make sure box contains following items before installations

![What's in the box: MWTH 301 package contents](/img/lorawan/sensors/macsync/lorawan-temperature-sensor-what-in-box.svg)

**Accessories must be purchased separately & may :**
not be included in the box.

## MWTH 301 Dimensions
![MWTH 301 dimensions drawing](/img/lorawan/sensors/macsync/minisync-temp-lorawan-sensor-diamensions.webp)

## Frequently Asked Questions

### What is the MWTH 301 used for?

MWTH 301 is a compact, low-power, battery-operated Wi-Fi temperature and humidity sensor for indoor and semi-industrial environmental monitoring. Typical applications include Smart Buildings & Offices, HVAC Monitoring & Optimization, Cold Rooms & Cold Chain Storage, Warehouses & Storage Facilities, Laboratories & Clean Rooms and Industrial Indoor Areas.

### What does the MWTH 301 measure, and how accurately?

Measurement specifications of the MWTH 301:

- Temperature: range -30°C to +70°C, accuracy 0°C to +70°C: ±0.3°C & -30°C to 0°C: ±0.6°C, resolution 0.1°C.
- Humidity: range 0% to 100% RH, accuracy 10% to 90% RH: ±3% RH & &lt;10% or &gt;90% RH: ±5% RH, resolution 0.5% RH.
- Pressure: range 300 hPa to 1100 hPa, accuracy ±1.0 hPa (typical at 25°C, 300–1100 hPa), resolution 0.1 hPa.

### How does the MWTH 301 connect and send data over Wi-Fi?

The MWTH 301 connects over IEEE 802.11 b/g/n/ac Wi-Fi on 2.4 GHz & 5 GHz (Dual‑Band). Security: WPA2‑PSK / WPA3, TLS / SSL Encrypted Communication. IP configuration: DHCP / Static IP. It sends data using MQTT, HTTP, HTTPS. Typical indoor range is up to 100 m (environment dependent).

### What is the IP rating and operating temperature of the MWTH 301?

The MWTH 301 has an ingress protection rating of IP65 standard (IP67 optional variant) and an operating temperature range of -40°C to +80°C. Operating humidity: 0% to 100% RH (non-condensing). Mounting options: Pole Mounting / Wall Mounting.

### How is the MWTH 301 configured?

The MWTH 301 is configured with the Macnman Maya Android app. Supported uplink modes: Time Based / Threshold Based / Sampling Based. It can also be configured remotely with JSON data sent from the server.

### Which cloud platforms does the MWTH 301 work with?

The MWTH 301 can send data to platforms including AWS IoT Core, Microsoft Azure IoT Hub, Google Cloud (via MQTT / HTTPS), Custom IoT Platforms. Deployment models: On-Premise Servers, Private Cloud Deployments, Public Cloud Platforms. Integration methods: MQTT Brokers, REST / HTTPS APIs, Webhooks.

## Related Products and Resources

- Related datasheets: [Narmada TSX1 compact LoRaWAN temperature and humidity sensor](/product/lorawan/sensors/temperature/narmada-tsx1-lorawan-temperature-humidity-sensor-datasheet), [MacSync-WT1 Wi-Fi temperature and humidity sensor](/product/wifi/sensors/temperature/macsync-wt-one-datasheet), [MacSync-WRTDX2 Wi-Fi RTD PT100 temperature sensor](/product/wifi/sensors/temperature/macsync-wifi-rtd-sensor-x-series), [MacSync-WRTDX5 Wi-Fi RTD PT1000 temperature sensor](/product/wifi/sensors/temperature/macsync-w-rtd-x-five-datasheet)
- Help: [Warranty terms and conditions](/help/macnman-standard-warranty-terms-and-conditions) and [contact Macnman support](/help/help)