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HT19 1/2


HT19 1/2

174.00zł (price includes VAT)

141.46zł Tax excluded

Product details
Float sensor, liquid level, reed switch, 1/2 inch mounting. Made of stainless steel. See details
Materiał wykonania:
Stainless steel SUS304

Availability: In Stock

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Liquid level control relays AFR1 allows to maintain minimum and maximum states. Includes an 8 VAC control voltage source. Designed to work with float sensors.

Liquid level sensor HT19 1/2" NIZP PRODUKT Z ATESTEM mini.jpg

Czujnik poziomu cieczy HT19
pic Liquid level sensor HT19

They are used wherever it is necessary to control and regulate the level of a liquid (e.g. water, oil, etc.). The sensor has a float equipped with a magnet, which rises under the influence of the buoyancy force of the liquid, causing the reed switch located in the tube to short circuit or open. They are usually mounted in the wall of the tank, so they can be used to control the lower or upper level of the liquid. They are made of stainless steel and can be used in a wide range of temperatures.

Czujnik poziomu cieczy HT19 -  wymiary

Fig. HT19 liquid level sensor - dimensions

Technical data

Name Description
Rated power 10W
Max. switching voltage 100VDC
Max. switching current 0,5A
Operating temperature -30 ~ +125 °C
Protection degree IP 67
Cable length None
Material Stainless steel SUS304
Mounting External thread 1/2 inch
Certificate PZH approval - approved for contact with drinking water


The design of the sensor does not allow the connection of 230V mains voltage, so it is recommended to use the relay AFR1 with a built-in safe voltage source of 8VAC to power the sensors.

Principle of operation

The sensors have a magnet fixed in the float, which, by rising, causes the contact of the reed switch located in the body of the tube to short or open. The sensors can operate as NC - normally closed or NO - normally open. Changing the mode of operation is achieved by rotating the float by 180°.

przyklad_1.jpg przyklad_1.jpg
  • high state: off
  • low state: on
  • high state: on
  • low state: off

Example of application

Maintaining the liquid level in the tank at any levels, high and low using the AFR1 relay available in our store. Relay AFR1 Allows both the actuation of an actuator device (such as a pump, solenoid valve) and the supply of up to two sensors with low control voltage.

Utrzymanie poziomu cieczy w zbiorniku
Maintaining the liquid level in a tank at any levels, high and low, using the AFR1 relay.
Data sheet
    Gwint 1/2″ Cala
    Operating temperature:
    -30 ~ +125 °C
    Degree of protection:
    Switching voltage:
    100V DC
    Max. prąd przełączania:
    0,5 A
    Breakdown voltage:
    220V DC
    Długość przewodów:
    Rated power:
    Materiał wykonania:
    Stainless steel SUS304
    Atest PZH - dopuszczony do kontaktu z wodą do spożycia

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