LF-TD Profinet Digital Humidity-Temperature Transmitter with Profinet Interface 0-100% Humidity
LF-TD Profinet / Digital humidity-temperature transmitter with Profinet interface / Profinet interface / very accurate measurement / flexible mounting / selectable humidity measurement variables
The transmitter has been specially developed for the detection and transmission of relative humidity and temperature in fixed installations. Thanks to the high-quality sensor technology, it is possible to detect even minor humidity fluctuations and their trends quickly and reliably in order to implement preventive measures. The remote sensor head allows flexible mounting options, even in hard-to-reach installation locations.
Application area
Transmitter for detection and transmission of relative humidity and temperature in fixed installation. The sensor technology used makes it possible to detect even small fluctuations in humidity and their tendencies quickly and reliably and to carry out preventive actions. The remote sensor head allows flexible mounting options even in hard-to-reach installation locations.
Performance features
| Sensor tube | Ø12 x 125 mm stainless steel |
|---|---|
| Sensor head | connected to electronics by 0.25 m cable |
| Relative humidity | 0 to 100 % |
| Calibration | +/- 2 % (10 to 90 %) |
| Output humidity | 4 to 20 mA (0 to 100 %) |
| Temperature range | -20 to +90 °C |
| Calibration | +/- 0.3 °C (+10 to +60 °C) |
| Output Temp. | 4 to 20 mA (-20 to +90 °C) |
| Supply | 12 to 29 VDC |
| Temperature electronics | -20 to +85 °C |
Your advantages
- Sensor for temperatures up to 90°C
- Special solutions in the technical structure
- Transmission of relative humidity and temperature in fixed installation
- Data management with own software
For more information, please click on the red boxes.

Comparison table / Extensions / Accessories
| Art.no. | Image | Extension, accessories |
|---|---|---|
| 10006 |
|
Calibration deviceCalibration device for pipe sensor
|
| 12456 | ![]() |
Drip shieldDrip shield LF-T transmitter
|
| 10600 | ![]() |
Factory calibration certificate Material humidityFactory calibration certificate - Calibration delivery record for material moisture meters
|
| 11235 | ![]() |
Certified oak ampoulesCertified oak ampoules - set of 5 pieces 80% RH.
|
| 10352 | ![]() |
Certified oak ampoulesCertified oak ampoules - set of 5 pieces 50% RH.
|
| 10005 |
|
Certified oak ampoulesCertified oak ampoules - set of 5 pieces: 2 pieces 35 % RH, 1 piece 50 % RH, 2 pieces 80 % RH.
|
| 14733 | ![]() |
HumiSenseWareHumimeter Standard License: Live Trend - Visualization Software
|
| 12011 | ![]() |
Special request flat rateSpecial request flat rate for humidity transmitter series per order, independent of quantity
|
| 13731 |
|
Option display with keyboard for LF-TDOption display with keyboard for LF-TD
|
| 13612 | ![]() |
Mounting bracketMounting bracket LF-TD
|
| 10249 | ![]() |
Sensor capStainless steel sintered sensor cap, stainless steel sintered filter: for use at high temperatures and in harsh operating environments
|
| Properties | LF-TD-H | LF-TD Profinet | LF-TD-ER Ethernet | LF-TD-U USB |
| Item no. | 14601 | 14555 | 13110 | 13083 |
| Application | Online moisture transmitter for determining the water content of wood chips, shavings, pellets and other materials. Online sensor optimized for wood gasification systems with 4-20 mA analogue output for water content and temperature. For installation in closed systems such as screw conveyors or storage containers. | Transmitter for recording and transmitting relative humidity and temperature in fixed installations. The sensor technology used makes it possible to detect even small fluctuations in humidity and their trends quickly and reliably and to take preventive action. The remote sensor head enables flexible mounting options, even in hard-to-reach installation locations. | Humidity transmitter for maximum temperatures of 90 °C with Ethernet interface (RJ45 socket) for laboratory, air conditioning and drying technology, wood processing, food, animal feed, construction and paper industries, printing, agriculture, biotechnology and medicine. Easy to integrate into existing networks. | Humidity transmitter for maximum temperatures of 60 °C with USB interface for laboratory, air conditioning and drying technology, wood processing, food, animal feed, construction and paper industries, printing, agriculture, biotechnology and medicine. |
| Measuring range wood chips | 2 - 20 % water content | - | - | - |
| Measuring range temperature | 0 to +40 °C | -20 to +90 °C | -20 to +90 °C | -20 to +60 °C |
| Resolution | 0.1 % water content, 0.1 °C | - | - | - |
| Supply | 24 VDC (15 to 29 VDC) | 12 to 29 VDC | 5 VDC 300 mA (via 2 meter USB cable) | 5 VDC 20 mA (via USB) |
| Current output | 4 to 20 mA for water content and temperature | 4 to 20 mA for humidity and temperature | - | - |
| Dimensions electronics housing | 70 x 32 x 120 mm | 586 x 76 x 70 mm | 214 x 76 x 70 mm | 214 x 76 x 70 mm |
| Scope of delivery | LF-TD-H incl. 1.9 meter connection cable with overmoulded 5-pin sensor plug | LF-TD Profinet incl. 1.9 meter connection cable with overmoulded 5-pin sensor plug | LF-TD-ER incl. 2 m connection cable | LF-TD-U, without cable and power supply unit |












