- Adopt IO trigger through supplying at least 10us sequence of high level signal
- The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal
- If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving
- Detection distance: 2cm~450cm
- High precision: Up to 3mm
RM14.40
- Available Colour: Red, Blue
- Material: Plexiglass
- Thickness: 3mm
- Size: 56x68x28mm
- Weight: 8g
RM1.80
- Can realize 2 cm to 450 cm non-contact ranging function
- Induction angle: less than 15°
- Detecting precision: 0.3cm+1%
- Voltage range: DC 3V- 5V
- Compatible with SR04 ultrasonic sensor
RM7.90
- Model: HC-SR04
- Color: Blue + Silver
- Working voltage : 5V(DC)
- Static current: Less than 2mA.
- Output signal: Electric frequency signal, high level 5V, low level 0V.
- Sensor angle: Not more than 15 degrees.
- Detection distance: 2cm~450cm.
- High precision: Up to 3mm
RM3.30
- Resolution up to 0.5 mm
- Can realize 2 cm to 400 cm non-contact ranging function
- Induction angle: less than 15°
- Detecting precision: 0.3cm+1%
RM8.90