Tips: Free shipping for order reached US$20 (AU$26.39)
If the order amount is less than $20, then there will be extra $5 (AU$6.60) for shipping (insurance tracking number service).
16 Sound Electronic DIY Kits
- 【16 Codings(ABCD)】: Arbitrarily issued 16 kinds of interesting analog sound. Control Mode: manual coding + external coding.
- 【Wide - Application】: It can be assembled with toys and can produce as many as 16 different sounds, making very interesting toys, such as converted into doorbell, alarm clock, alarm, and so on.
- 【Easy Assembly】: The operating principle and coding are provided in description. Great for kids, students, begginers and hobbyist.
http://www.icstation.com/music-kits-sound-electronic-kits-ar…
Contactless Liquid Level Sensor Non Contact IP65 Waterproof NPN Output Detector.
- High stability, high sensitivity, strong anti-interference capacity.
- Not be affected by power frequency interference and common mode interference due to special disposals so as to compatible with 5-24V power adapter.
- Applicable to different shapes of container or tube level's liquid level detection.
http://www.icstation.com/contactless-liquid-level-sensor-con…
Aliexpress - 0.88USD + ship + GST =$2.52USD / $3.25AUD
https://www.aliexpress.com/item/32882504047.html?spm=a2g0s.8…
This deal $2.64 + 6.60 = $9.24.