NESA UTA Thermoigrometric sensor



Product Introduction
Product Features
Technical Details
Product Introduction

Combined sensor for measuring air temperature and humidity, accurate and reliable, compact and sturdy, made of aluminum alloy with anodized to protect against salt air and oxidizing agents. Sensor manufactured according to standard WMO (World Meteorological Organization) Annex.8 for environmental monitoring. Very fast response (<10s). Easy to install and to interface to any datalogger. Available with Accredia certification, with different electrical outputs and with forced ventilation.

  • Accurated and reliable Air Humidity & Temperature Sensor
  • Measure with high precision capacity and RTD Pt100
  • Compact and light design in aluminium for hot and cold climates
  • According to WMO standards and to EN 15518-3:2011
  • Available with forced ventilation

UTAV Thermoigrometric sensor with fan is also available

Product Features

  • Accurate and reliable Air Humidity & Temperature Sensor
  • Measure with RTD Pt100 and capacity
  • According to WMO standards
  • Anticorodal Aluminum body with size and weight compact
  • Available with forced ventilation (model UTAV)
  •  Range: -40 ÷ +60°C (-60°C ÷ +70°C on request) [0 ÷ 100%Rh]
  • Resolution: 0.01°C, [0.05%]
  • Accuracy: DIN 43760 1/3DIN (±0,1°C), [± 2% f.s.]
  • Response time: <8s
  • Operating conditions: : -50 ÷ +80°C (-60 ÷ +80°C on request)
  • Output signal: N: 0÷1Vdc(Rh) & Pt100 (T); A: 0÷1Vdc(Rh) & 0÷2Vdc (T); B: 4÷20mA (Rh) & 4÷20mA (T) ; C: 2 x RS485 /ModBus
  • Power supply: 10÷30Vdc (consumption with forced ventilation 2W max@12Vdc)

Technical Details

Temperature [humidity] typical range

-40 ÷ +60°C, [0 ÷ 100%Rh] (-60+80°C available)

Temperature [humidity] resolution

0.01°C, [0.1%]

Temperature [humidity] accuracy

DIN 43760 1/3DIN (±0.1°C @ 0°C), [± 1% f.s.]

Temperature [humidity] response time

< 8 s, [< 8sec (10÷80%RH)]

Type of transducer

Platinum resistance Pt100 1/3DIN  N (100Ω @ 0°C) [capacitive]


Natural (cod. UTA)

Forced (cod. UTAV)

Signal out

N: 0÷1 Vdc(Rh) & Pt100 (T); A: 0÷1 Vdc(Rh) & 0÷2 Vdc (T) ; B: 4 ÷ 20mA (Rh) & 4 ÷ 20mA (T) ; C: 2 x RS485 /ModBus

Working conditions

-50 ÷ +80°C (-60 ÷ +80°C available)


polarity reverse and transient

Made of

Aluminum alloy, stainless steel screws

Power supply and consumption

10÷28Vdc, (typ.<0.1W, max 2W@12Vdc mod. TAV)> <0.1, max 2W@12Vdc mod. TAV)




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

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

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)