NESA TA Air temperature sensor Pt100 – 1/3DIN



Product Introduction
Product Features
Technical Details
Product Introduction

RTD sensing element 1/3DIN Pt100, connection with a four-wire, Pt100 output or electrical signal in current or voltage (4 to 20mA or 0 ÷ 2Vdc) or in digital output on RS485/Modbus. The sensing element is protected by a series of screens against direct sunlight and UV radiation, so arranged to garantee a natural ventilation. Their particular white reflective color, cancels the warming effect induced on the sensing element, ensuring maximum accuracy. The sensor is manufactured according to standard WMO (World Meteorological Organization) and is also available in versions with forced ventilation (code. TAV).

Product Features

  • Accurate and reliable Air Temperature Sensor
  • Limited dimensions and weight
  • Measure with Platinum resistance Pt100 1/3 DIN
  • Compact and light design in aluminium
  • According to WMO standards and to EN 15518-3:2011
  • Accuracy ≤ 0,1°C
  • Available with forced ventilation

Technical Details

Typical range

-40 ÷ +60°C (other ranges available)




DIN 43760 1/3 DIN (±0.1°C @ 0°C) certificabile ACCREDIA

Response time

< 10 s

Type of transducer

platinum resistance 1/3 DIN


Natural (cod. TA)


Forced (cod. TAV)

Signal out

Pt100 1/3DIN resistance (100Ω @ 0°C), 0÷2Vdc, 4÷20mA


Digital RS485 / ModBus

Working conditions

-60°c ÷ +80°C


polarity reverse and transient

Made of

aluminium alloy, stainless steel screws

Power supply and consumption

10÷30Vdc, (typ.<0.1W, max 2W@12Vdc mod. TAV)> < 0.1W, max 2W@12Vdc mod. TAV)




Standard cable

Standard Cable


Shielded multi-core cable for indoor/outdoor use, suitable for hot and cold climates. With IP68 waterproof connector for connecting the sensor, and PS2 plug connector for direct connection to the data logger or with terminal sleeves for insertion into the terminal blocks. Our cables are standard for most our sensors. Available in different lengths starting from 1m.

Special Cable

Special Cable

NPI shielded cable. With IP68 waterproof connector for connecting to the sensor, and terminal sleeves for insertion into the terminal blocks.

Available in any length.

Bracket/ Arm Support


Fixing system for Nesa’s sensors, composed by an arm of different lengths (50cm, 90cm, 150cm) and thermoplastic resin clam for external, able to withstand to extreme temperature and to solar radiation.

Two stainless steel screws for the tightening of the clamp on the sensor complete the equipment.

MCS Signal Conditioning Module

MCS Signal

Single channel module for conditioning digital and analog electrical signals. Fully programmable for binding input/output with the USB interface available as an option.

·       Programmable input signals: Pt100, thermopiles, Voltages up to 2Vdc, Current 0÷20mA or 4÷20mA, frequency up to 1000Hz, Counter for pulses (1ms min)

·       Programmable Output signals: voltage 0÷2Vdc; Current 0÷20mA or 4÷20mA Serial RS485 (command line); Modbus RS485

·       Resolution: 18 bits with over 262,000 points

·       Operating conditions: -40 ÷ +80°C

·       DIN rail mounting

·       Power supply: 10÷30Vdc (typ. 4mA@12 Vdc)