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1W-TH-IB on-wall temperature+humidity sensor


A compact on-wall 1-Wire thermometer and humidity sensor. Designed for indoor temperature and relative air humidity measurements.

Note: The product was phased out of production and will be available only until its stock lasts. The sensor was replaced by the 1W-TH-IB2.

39,99 €
33,05 € excl. VAT
Less than 20 items in stock


The 1W-TH-IB sensor is designed for interior measurements of temperature and relative humidity in buildings. Its circuit board is placed within an on-wall installation box (KU 68 wiring box, IP30 protection). The sensor communicates with the master system using the 1-Wire bus (spring terminal, four conductors). 

The sensor is fully compatible both with the Mervis, an officially supported SW platform for UniPi products and with the EVOK, an open-source application programming interface (API). 

  • Mervis: The device is compatible with the SEDtronic sensor line, allowing the user to use the same Unica_U1WT function block to read the values. 
  • EVOK: The sensor is detected automatically and can be used right away. Measured values are accessible on an address of the particular sensor also serving as a device identification. You can find the address on a sticker provided with the product. 

Installation guide and technical parameters can be found in the product's datasheet (see the Files tab above) 

Further info


Datasheet of the product

Sensor type DS18B20 (temperature), DS2438 (humidity)
Humidity measuring range 11 % RH/89 % RH (+-3 % RH accuracy)
Temperature measuring range -40 °C/+85 °C (+-2 °C accuracy)
Connection 1-Wire (screw terminal)
Power 5 V (available on a connector along with 1-Wire)
IP rating IP30
Dimensions 80 × 80 × 25 mm
Installation Wiring box (KU 68)
Max. current draw 1 mA

1-Wire Temperature Sensor

8,91 €
7,36 € excl. VAT

More than 20 items in stock Show variants

SEDtronic 1-Wire sensor

14,99 €
12,39 € excl. VAT

Less than 20 items in stock Show variants

1W-T-IB on-wall temperature sensor

19,99 €
16,52 € excl. VAT

More than 20 items in stock Add to cart +

RJ45/3-pin 1-Wire cable reduction

4,01 €
3,31 € excl. VAT

More than 20 items in stock Add to cart +