HT335 Ultrasonic Motion Detector (12Feet) / Electronics Kit

Item ID : 184217102
HT335 Ultrasonic Motion Detector (12Feet) / Electronics Kit
Sale Price : RM 63.60
Price includes GST (6%)
Shipping (*Exclude GST) :
Peninsular :RM7Sabah, Labuan:RM10Sarawak:RM9
Option :
Ship To : Within Malaysia, ship by Courier Services, Self Collect
Item at : Johor Bahru / Johor
Views : 1402

HT335 Ultrasonic Motion Detector (12Feet) / Electronics Kit


The HT335 is a Ultrasonic Motion Detector which can be used to turn the device on or off when moving object or human bodies was detected. Ideally designed for security alarm system, proximity switch, visitor chime, etc.

Example: When a burglar enter the detection zone, the reflected waves changes it's frequency slightly. This change of frequency cause the circuit to activated the relay for a few seconds.



  • Input Voltage: 9-12VDC
  • Maximum Distance: 12 Feet
  • Used a pair of 40Khz Ultrasonic Transducer
  • Sensitivity is adjustable
  • Reverse Polarity Protection
  • LED Indicator for Relay On
  • With Relay Output


Assembly Instructions

  • Check off the components in the package against the component listing before assembly.
  • Start with the smallest components working up to the taller components, soldering any interconnection wires last.
  • Place and Solder the components into the board, make sure the components are in right position according to the overlay of PCB
  • The transduces are mounted off board via 2 pairs of header, 


Test & Adjustment

  • After assembled, please check & ensure the value & polarity for all components were inserted into PCB correctly, wrong polarity connection of capacitors can caused explosion of failure.
  • Next, ensure all these leads are soldered, no solder bridges between adjacent pads and no dry joint.
  • Once confirmed, connect the power source to the circuit board.
  • If all goes well, this kit starts function as following:
  • When any object is found moving in front of the transducers, the relay coil will be energized to enable the output and the Red LED indicator on the PCB will turn on for a few seconds.
  • This will repeat continuously until the object stops moving.



  • Package includes schematic, printed circuit board and components
  • You need to have a soldering skill and basic knowledge of testing
  • For any inquiry or other technical problem, please contact us through or 07-3344473


Last Updated @ 1/27/2016 2:35:26 PM

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Q&A (1)
afarid81 ask: (2015/4/2 15:33)  
berapa lama masa yang boleh diset untuk relay beroperasi. adakah dengan adjust VR ?
hitectrons reply: (2015/4/3 09:24)  
Hi, 5-10 seconds, you can add the timer kitset if you required longer time.

HT335 Ultrasonic Motion Detector (12Feet) / Electronics Kit
RM 63.60 Shipping fee (*Exclude GST):Peninsular: RM 7, Sabah/Labuan: RM 10, Sarawak: RM 9,
International: RM
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