We do not include any printed materials of the following "Data Sheets". You will need to print from the following Document(s).
40KHz Ultrasonic transducers in a waterproof sealed aluminum case. 1/4" Pin Terminals
Max transmitter input= 150VRMS
Trans. Sound pressure level: 105± 5db
Receiver sens: -73dB min
Directivity: 90 deg. NOTE: Short Lead connected to Case Sold in pairs: 1 transmit & 1 receive. Dia: 16mm H: 10mm WT: .01
WARNING: This product can expose you to chemicals including Chromium which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
Click to see Why is this here?
As of August 2018 the State of California has changed the requirements of the “Prop 65” law. We now must list on our website any possible chemicals the can cause cancer, birth defects or reproductive problem.
As an example:
ABS plastic contains styrene
PVC wire insulation can contain Di(2-ethylhexyl)phthalate (DEHP)
electrolytic capacitors can contain Ethylene glycol
Brass can contain Lead
flame retardant pc boards can contain Tetrabromobisphenol A (TBBPA)
Aluminum alloys can contain Chromium
To put it simply we are a small company and do not have the resources to test every single part, so we list every thing as hazardous. Please recycle all electronic parts responsibly and under no circumstance eat, drink or smoke these parts and wash your hands after touching!
These work well, after I had continued to increase their transmit input voltage. They are very inefficient as you might suspect seeing that there is aluminum on their face rather than an acoustically-transparent screen. So they required around 90VDC through a MOSFET amp to operate well. These are marked T and R but I believe they are otherwise identical.
- Dirk DeRose, OK
Seller was lightning fast in response to request for asistance. A++ in my book.