1. Can detect surrounding environment of the humidity and temperature
2. DHT11 sensor adopts
3. Humidity measurement range: 20% ~95%
4. Humidity measurement error: ±5%Â
5. Temperature measurement range: 0℃~50℃
6. Temperature measurement error: ±2 ℃
7. Operating voltage:3.3 V~5 V
8. Output form:digital
9. Has fixed bolt hole and easy installation
10. PCB Dimension: 32 mm * 14 mm
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Features:
1.Low voltage, low power device, and with automatic power off switch.
2.3 wire interface can meet the various communication with the microprocessor.
3.Compared with MS5534A, the pressure range of the pressure drop (10 mbar) is improved.
Description:
* adjustable sensitivity ( shown in blue digital potentiometer adjustment )
* Operating Voltage 3.3V-5V
* Module Dual Output mode , a simple digital output , analog output more accurate.
* with fixed bolt hole for easy installation
* small PCB board size : 3cm * 1.6cm
* power indicator ( red ) and the digital switch output indicator ( green )
1. The current sensor chips: ACS712ELC-05B.
2. pin 5V power supply, on-board power indicator.
3. the module can be measured plus or minus 5 amps, corresponding to the analog output of 185 mV / A.
4. there is no the detection current through, the output voltage is VCC / 2.
5. PCB board size: 31 (mm) x13 (mm).
Note: ACS712 Hall detection principle, when you use to avoid magnetic field impact this!
Module features:
Test reflection distance: 1mm to 25mm
The working voltage of 3.3V to 5V
Output form: digital switch output (0 and 1)
Has a fixed bolt hole, convenient installation
Small board PCB size: 3.2cm x 1.4cm
The LM393, use of wide voltage comparator
Size:3.1x1.3cm(approx)
1.Working Voltage : 5V(DC)
2.Static current: Less than 2mA.
3.Output signal: Electric frequency signal, high level 5V, low level 0V.
4.Sensor angle: Not more than 15 degrees.
5.Detection distance: 2cm-450cm.
6.High precision: Up to 0.3cm
7.Input trigger signal: 10us TTL impulse
8.Echo signal : output TTL PWL signal
Characteristic parameter:
Mounting way: Screen shield type
Detection distance: 10mm±10%
Set distance: 0-8mm
Response frequency: 1 kHz
Delay distance: 10% below of the detection distance
Detection object: Magnetic metal (the detection distance decrease when it is non-magnetic metal)
