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High-Temperature Temperature & Humidity Transmitter LFH70

Lefoo High-Temperature Temperature & Humidity Transmitter LFH70

LFH70 Temperature & humidity Transmitter is a highly reliable product developed for high-precision temperature and humidity measurement in fundamental industrial applications and climate control fields. Its split probe can work in environments with temperatures up to 180 °C. The high-temperature humidity sensitive capacitor has high long-term stability, strong anti pollution ability, and excellent anti electromagnetic interference ability. Comparing to other HVAC transmitters, the innovative metal structure design gives LFH70 the advantage of stronger structure and and longer duration in harsh working conditions.


Features

* Full metal shell, strong and reliable, suitable for harsh working environment.

* High temperature range:-40~180°C.

* Temperature&Humidity full range calibration, high accuracy.

* Sensitive components endure high temperature, with good humidity repeatability.

* The core coating has long-term stability and strong anti pollution ability.

* LCD display, buttons, alarm and other modules optional.



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  • Specification
  • Features
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Specification of High-Temperature Temperature & Humidity Transmitter LFH70

Technical parameter


Temperature and Humidity Transmitter Probe LFH70
Relative Humidity
Sensing elementHigh temp&humidity sensitive capacitor
Range0%~100%RH
OutputRS485/Modbus,0~10V, 4~20mA optional
Accuracy

≤90%RH@20°C ±2%RH

≥90%RH@20°C ±2.3%RH

Response Time≤10S
Temperature
Sensing elementPT1000
Probe Operating Temperature-40~180°C
OutputRS485, 0-10V, 4-20mA optional
Accuracy

±0.2℃@20℃, see accuracy curve chart

Power Supply

15-35VDC/24VAC ±20%

Output Load≤500Ω (Current type), ≥10KΩ (Voltage type)

Operating temperature range of electronic components (with LCD

PC shell, PA6 probe rod,ABS protective cover
Relay

2×SPDT (3A-30VDC/250VAC)

Note: The default length of split type cable is 1 meter, and the length can be added by meter basis, represented by number after the model. The default temperature range for voltage and current type is -20~60 °C, and can be reset by pressing any button.

Model selection example LFH70-A4-2, it means split type temperature and humidity transmitter, 4-20mA output, with LCD external button, customized wire length of 2 meters.

Air duct: ➀ open holes, ② install the flange,lock the screw, ③ install the air pipe and adjust the size, ➃ lock the screw

Transmitter box: ➄ open holes, ➅ into the expansion tube, ➆ install the body, locking screws

Features of High-Temperature Temperature & Humidity Transmitter LFH70

  • Full metal shell, strong and reliable, suitable for harsh working environment.

  • High temperature range:-40~180c.

  • Temperature&Humidity full range calibration, high accuracy.

  • Sensitive components endure high temperature, with good humidity repeatability.

  • The core coating has long-term stability and strong anti pollution ability.

  • LCD display, buttons, alarm and other modules optional.


Applications of High-Temperature Temperature & Humidity Transmitter LFH70

Developed for high-precision temperature and humidity measurement in fundamental industrial applications and climate control fields

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