The HW group HTemp‑485 T3411 is a modern and robust temperature and humidity sensor with an RS‑485 interface. It delivers precise climate data for demanding monitoring applications in industrial environments, server rooms, data centers, the food industry, and pharmaceutical storage. With a temperature range of –30 °C to +80 °C and humidity measurement from 0–100 % RH, this sensor provides reliable readings even under challenging conditions.

The integrated LCD display allows quick on-site visualization of all relevant measurement values. This is particularly useful for technicians and facility managers who require an immediate overview of climate conditions at any time. With direct Poseidon2 integration, the sensor can be incorporated into HW group monitoring networks, making real-time data available locally, centrally, and via cloud platforms.

The HTemp‑485 T3411 is suitable for both indoor and protected outdoor environments. Its IP40 protection class provides reliable resistance to dust and light moisture exposure. The RS‑485 interface ensures stable, secure data transmission even over long cable distances. With a power consumption of only 10 mA, the sensor is extremely efficient—ideal for continuous operation.

In addition to standard temperature and humidity measurements, the sensor also calculates climate‑related values such as dew point, absolute and specific humidity, and enthalpy. These extended parameters enable in‑depth analysis of environmental conditions and are indispensable for HVAC, environmental monitoring, and quality control processes.

Technical Specifications

• Temperature range: –30 °C to +80 °C
• Temperature accuracy: ±0.4 °C
• Humidity range: 0–100 % RH
• Humidity accuracy: ±2.5 % RH
• Calculated parameters: dew point, absolute humidity, specific humidity, enthalpy
• RS‑485 interface – stable data transfer even across long distances
• Compatibility: HW group Poseidon2 4002 and Poseidon 2250
• Integrated LCD display for real‑time visualization of all measurements
• Power supply: 12 V from Poseidon unit or external 10–35 V DC
• Power consumption: 10 mA
• Protection class: IP40

Advantages of the HTemp‑485 T3411 Sensor

• High‑precision and reliable temperature and humidity measurement
• Calculation of additional climate indicators such as dew point and enthalpy
• Real‑time display via integrated LCD screen
• Low energy consumption for cost‑efficient continuous operation
• Full integration with HW group Poseidon monitoring systems
• Rugged design for industrial applications

Typical Applications

• Server room and data center monitoring
• Food industry – maintaining cold chains and hygiene standards
• Pharmaceutical storage – protection of sensitive medications
• Environmental monitoring in urban and industrial projects
• Building management and smart building automation
• HVAC and climate system control

Integration with HW group Systems

The HTemp‑485 T3411 communicates via RS‑485 with Poseidon monitoring devices, transmitting precise sensor data in real time. The combination of local LCD display and centralized network integration makes this sensor ideal for applications requiring rapid response and high data accuracy. Cloud platforms such as SensDesk.cloud extend its functionality further by enabling remote monitoring and centralized data management.

Reliability and Durability

High‑quality sensor technology and a sturdy housing ensure dependable long‑term operation, even under demanding conditions. Its low maintenance requirements and straightforward integration make the HTemp‑485 T3411 a lasting investment for any professional monitoring infrastructure.

The HW group HTemp‑485 T3411 provides precise temperature and humidity monitoring with extensive additional functionality and seamless RS‑485 integration. Its LCD display, low power consumption, and robust design make it an ideal solution for industrial, IT, and building technology applications. With this sensor, users gain dependable climate data for effective management of critical environments.