SKU: SENS-3835
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Focusens NTC RTD Duct Temperature Sensor for HVAC System - 2.5m Cable

₹629.00 (Inclusive of all taxes)
Out of Stock

The Focusens NTC RTD duct temperature sensor provides accurate thermal monitoring for HVAC and building automation systems. Featuring a 2.5m cable for flexible installation, it delivers reliable resistance-based temperature readings for integration with PLCs, BMS controllers, and data loggers.

Features

  • NTC RTD sensing element for precise duct air temperature measurement.
  • Wide operating temperature range from -50°C to +125°C.
  • Includes a 2.5-meter cable with 28 AWG wiring for extended reach.
  • Designed for direct integration into HVAC ductwork and control systems.
  • Provides real-time data for energy efficiency and climate regulation.

Out of stock

Description

The Focusens sensor utilizes a Negative Temperature Coefficient (NTC) Resistance Temperature Detector (RTD) element, where electrical resistance decreases predictably with increasing temperature. This analog output provides a stable and accurate signal for monitoring air temperature within ventilation ducts, plenums, and air handling units.

Engineered for HVAC environments, the sensor is built to withstand the temperature fluctuations and airflow conditions typical in commercial and industrial ducting. Its extended 2.5-meter cable allows for installation flexibility, connecting directly to terminal blocks or signal conditioners on control panels. The robust construction ensures long-term reliability with minimal drift, supporting precise temperature control loops and energy management strategies.

Key Features

  • High-precision NTC RTD sensing element for accurate temperature feedback.
  • Durable probe and cable assembly designed for HVAC duct mounting.
  • Wide operational range suitable for both supply and return air monitoring.
  • Long 2.5-meter cable (28 AWG) facilitates remote sensor placement.
  • Simple two-wire installation for direct connection to controller analog inputs.
  • Stable output ensures reliable performance in dynamic airflow conditions.
  • Optimized for seamless integration into Building Management Systems (BMS) and PLC networks.

Applications

  • Supply and return air temperature sensing in commercial HVAC air handling units.
  • Duct temperature monitoring for VAV (Variable Air Volume) box control.
  • Energy management and efficiency logging in building automation systems.
  • Process air temperature verification in industrial ventilation and drying systems.
  • Pre-conditioning and climate control in server rooms and data centers.

Technical Specifications

Item TypeTemperature Sensor
Model NameNTC RTD Duct Temperature Sensor
Sensing TechnologyNTC RTD (Resistance Temperature Detector)
Operating Temperature Range-50°C to +125°C
Cable Length2.5 meters
Wire Size28 AWG
Primary ApplicationHVAC Duct Temperature Monitoring

Frequently Asked Questions

What is the output signal of this NTC RTD duct sensor?

This sensor provides a passive resistance output corresponding to the NTC RTD's characteristic curve. It requires an external controller or signal conditioner with a resistance-to-temperature conversion algorithm or lookup table to interpret the measurement. It is typically connected as a two-wire resistive element.

How do I install this sensor in an HVAC duct?

Installation involves drilling a pilot hole in the duct wall and securing the sensor probe with an appropriate gland or mounting bracket to ensure an airtight seal. The 2.5-meter cable can be routed to the control panel and terminated on the analog input terminals of a PLC, BMS controller, or data logger configured for NTC resistance input.

What is the difference between NTC and PT100 RTD sensors?

NTC (Negative Temperature Coefficient) thermistors offer high sensitivity and a non-linear resistance curve over a wide range, commonly used in cost-effective HVAC applications. PT100 is a Platinum RTD with a positive temperature coefficient and a more linear, standardized resistance curve (100Ω at 0°C), often preferred for higher precision industrial measurements. This sensor uses NTC technology.

Package Includes

  • 1 x Focusens NTC RTD Duct Temperature Sensor

Additional Information

Weight 0.047 kg
Dimensions 10 × 11 × 2 cm