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Indoor Temperature Humidity Sensor LFH20

LFH20 series temperature and humidity transmitter is a sensor specially designed for the HVAC industry, with small size, simple installation and easy operation. It has special design for lightning surge, electrostatic discharge, group pulse, withstand voltage, etc., and has strong anti-interference ability. Buy it now!


Features


Adopt imported high-precision sensors and main control, with good long-term stability and anti-interference ability

A variety of output methods are optional, in line with the standard 86 box installation method

Lightweight and beautiful shell design, using CD backlight temperature and humidity display, easy to use

The power supply and output have overvoltage and reverse connection protection functions, high reliability and anti-interference ability, CE certification


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Specification of Indoor Temperature and Humidity Sensor LFH20

Relative Humidity
SensorDigital type
Measurement Range0%~100%RH
OutputRS485/Modbus,0~10VDc, 4~20mA optional
Accuracy±3%@ 20℃ & 20~80%RH
Response time≤10s(25℃, slow flow air)
Temperature
SensorDigital or RTD, refer to selection table
Measurement Range0~50℃, -20~60℃, etc
Output Signal4~20mA,0~10VDC, RS485/Modbus optional
Power Supply

Voltage type/485 type 15~35VDC/24VAC±20% ;

Current type 19.5~35VDC (RL=500Ω)/9.5~35VDC (RL=0Ω)

Working Environment-20~60℃, 5%-95%RH(non-condensing)
Accuracy

Digital sensor: ±0.3℃@20℃    ;

RTD: Typical ±0.2~0.4℃@25℃, refer to selection table

Output Load≤500Ω(current type), ≥2KΩ(voltage type)
RTD(thermal resistor)Refer to the selection table and RTD indexing table
DisplayOptional LCD display with unit display and backlight (4~20mA without backlight)
Shell MaterialPC shell
Protection ClassIP30



Description of Indoor Temperature and Humidity Sensor LFH20

1. Adopt imported high-precision sensors and main control, with good long-term stability and anti-interference ability.

2. A variety of output methods are optional, in line with the standard 86 box installation method.

3. Lightweight and beautiful shell design, using LCD backlight temperature and humidity display, easy to use.

4. The power supply and output have overvoltage and reverse connection protection functions, high reliability and anti-interference ability, CE certification.


LEFOO Company

LEFOO Industrial Co., Ltd has 6 laboratories with advanced and complete equipment to develop and improve the accuracy of existing products in various ranges and various temperature conditions. It also has a semi-automatic dust-free production center for the manufacture of pressure transmitters.  Please contact our sales team to get the best transmitter price.


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