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%
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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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)
Features:
* Low power consumption
* Power supply for 2 ~ 5.5V DC
* Can replace the traditional touch of a button
* Four M2 screws positioning holes for easy installation
01. Working Voltage Range: DC 4.5V- 20V
02. Current drain:<60uA
03. Voltage Output: High/Low level signal:3.3V TTL output
04. Detection distance: 3--7M(can be adjusted)
05. Detection range: <140°
06. Delay time: 5-200S(can be adjusted, default 5s +-3%)
07. Blockade time: 2.5 S (default)
08. Trigger: L: Non-repeatable trigger H: Repeat Trigger (default)
09. Work temperature:-20-+80°C
10. Trigger Method: L unrepeatable trigger / H repeatable trigger
11. Color: White + Green
12. Dimension: 3.2cm x 2.4cm x 1.8cm (approx)
13. Infrared sensor with control circuit board
14. The sensitivity and holding time can be adjusted
Feature summary
Operating voltage: 4.5 V to 5.5 V
Average current consumption: 30 mA (note: this sensor draws current in large, short bursts, and the manufacturer recommends putting a 10 µF capacitor or larger across power and ground close to the sensor to stabilize the power supply line)
Distance measuring range: 10 cm to 80 cm (4? to 32?)
Output type: analog voltage
Specifications:
Chip: MAX31855
Working Voltage: 3~3.6V
Temperature Measuring Range: -200°C to 1350°C
Temperature Resolution: 0.25°C
Output Mode: SPI Digital Signal
Module Size: 25mm * 15mm
Module Weight: 3g
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
