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.
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Key Features
High‑Accuracy Temperature & Humidity Sensing Precision temperature and humidity measurements using industrial‑grade sensing elements for reliable environmental monitoring.
Low‑Power Wi‑Fi Connectivity Optimized Wi‑Fi communication with intelligent sleep‑wake cycles for battery‑efficient operation.
Direct IP‑Based Communication Transmits data directly to local servers or cloud platforms over Wi‑Fi without gateways.
Standard IoT Protocol Support Supports MQTT, HTTP, and HTTPS for easy integration with dashboards, BMS, and IoT platforms.
Battery‑Operated Design Enables flexible deployment in locations where wired power is unavailable.
Fast Response & Long‑Term Stability Low sensor drift and stable performance over extended operating periods.
Local Configuration via BLE Easy provisioning, diagnostics, and configuration using the Macnman Maya mobile application.
Secure Wireless Communication WPA2 / WPA3 Wi‑Fi security with TLS/SSL encrypted data transmission.
Compact & Lightweight Form Factor Small enclosure suitable for wall or ceiling mounting in indoor environments.
Ingress‑Protected Enclosure IP‑rated housing designed for reliable operation in industrial and commercial indoor environments.
Smart Data Reporting Supports time‑based, threshold‑based, and event‑driven reporting to optimize power consumption.
Smart Building & HVAC Ready Ideal for climate monitoring, comfort analysis, and energy optimization applications.
Suited Applications
Smart Buildings & Offices Continuous indoor temperature and humidity monitoring for comfort optimization, energy efficiency, and building management systems.
HVAC Monitoring & Optimization Tracks temperature and humidity across HVAC zones to improve performance, efficiency, and preventive maintenance.
Cold Rooms & Cold Chain Storage Reliable environmental monitoring for cold rooms, vaccine storage, food warehouses, and pharmaceutical storage areas.
Warehouses & Storage Facilities Ensures controlled temperature and humidity conditions for FMCG, electronics, raw materials, and finished goods.
Laboratories & Clean Rooms Accurate climate monitoring for research labs, testing facilities, and controlled indoor environments.
Industrial Indoor Areas Monitors environmental conditions inside factories, production floors, and utility rooms with existing Wi‑Fi coverage.
Data Centers & Server Rooms Tracks temperature and humidity to protect IT infrastructure and ensure operational reliability.
Retail & Commercial Spaces Maintains indoor comfort and monitors climate conditions in malls, stores, and commercial buildings.
Hospitals & Healthcare Facilities Supports temperature and humidity monitoring in wards, pharmacies, equipment rooms, and storage areas.
Technical Specifications
General
Specifications
Part Order Number
MWTH 301
Product Brand
Macnman Technologies Pvt Ltd
Temperature
Measurement
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
Calibration
Factory calibrated
Probe Options
Internal & External Both Options
Humidity
Measurement
Range
0% to 100% RH
Accuracy
10% to 90% RH: ±3% RH & <10% or >90% RH: ±5% RH
Resolution
0.5% RH
Calibration
Factory calibrated
Pressure
Measurement*
Range
300 hPa to 1100 hPa
Accuracy
±1.0 hPa (typical at 25°C, 300–1100 hPa)
Resolution
0.1 hPa
Long‑Term Stability
≤ ±1 hPa/year
Calibration
Factory calibrated
Wireless
Communication
Wi‑Fi Standards
IEEE 802.11 b/g/n/ac
Frequency Bands
2.4 GHz & 5 GHz (Dual‑Band)
Operating Modes
Station Mode (Client)
Access Point Mode (Configuration)
Network Protocols
MQTT, HTTP, HTTPS
Security
WPA2‑PSK / WPA3
TLS / SSL Encrypted Communication
IP Configuration
DHCP / Static IP
Typical Indoor Range
Up to 100 m (environment dependent)
LED
Status
LED Type
1 Internal Multi-Color LED
Solid Blue
Device is connected with Maya App
Flashing Blue
OTA (Over-the-Air) update in progress
Slow Blinking Green
Attempting to connect to the network
Single Red Blink
A confirmed parameter of MacSync is being modified
Device
Configuration
Configuration
Via Macnman Maya Android App
Uplink Modes
Time Based / Threshold Based / Sampling Based
Stored Records*
30,000 Records
Remote Configuration
JSON Format Data - from server
Supported
Cloud & Platforms
Deployment Models
On-Premise Servers
Private Cloud Deployments
Public Cloud Platforms
IoT Cloud Platforms
AWS IoT Core
Microsoft Azure IoT Hub
Google Cloud (via MQTT / HTTPS)
Custom IoT Platforms
Integration Methods
MQTT Brokers
REST / HTTPS APIs
Webhooks
Enterprise Systems
SCADA Systems
BMS / IBMS Platforms
Data Lakes & Analytics Engines
Physical
Characteristics
Power Supply
9-36 V DC
Operating Temperature
-40°C to +80°C
Humidity Range
0% to 100% RH (non-condensing)
Ingress Protection
IP65 standard (IP67 optional variant)
Housing Material
Glass field Nylon
Color
Matte White
Weight
~110g
Mounting Options
Pole Mounting / Wall Mounting
Electrical
Characteristics
Input Voltage Range
9-36 V DC (External Supply)
Power Consumption
~100 µA in sleep mode
~150 mA during transmission
Input Impedance
>10 MΩ for voltage inputs
Communication
Options
BLE Connectivity
For local configuration and diagnostics via Maya App
Cloud Protocols
MQTT / HTTPS
Serial Interface
RS485 Modbus RTU support (optional)
Certifications &
Compliance
WPC
Compliant
RoHS
Conforms to RoHS directive
Security &
Encryption
Data Encryption
AES-256 end-to-end encryption
Authentication
OTAA activation modes
Firmware Protection
Secure boot and signed OTA updates
MWTH 301 Variants
| Variant Name | Power Source | Battery Capacity | Solar Support | External Flash | Ideal For |
|---|---|---|---|---|---|
| MLTH 301-BO | Battery | 09 Ah | ✖️ | ✔️ | Remote or portable deployments with low power |
What's in the Box?
Make sure box contains following items before installations
Accessories must be purchased separately & may not be included in the box.
MWTH 301 Dimensions
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 & <10% or >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.