01. The switching signal having a DO (TTL) output and analog output AO ;
02. TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
03. Analog output voltage with the higher concentration of higher voltage.
04. A gas, natural gas, city gas , smoke better sensitivity.
05. Has a long life and reliable stability
06. Rapid response and recovery characteristics
07. Input voltage : DC5V Power consumption ( current ): 150mA
08. DO output : TTL digital 0 and 1 ( 0.1 and 5V)
09. AO output :0.1-0 .3 V ( relative to pollution ) , the maximum 10. concentration of a voltage of about 4V
11. Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the internal heating wire , if hot is not normal .
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
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
Specifications
Dimensions: 2.95" x 0.5" x 0.125" (without header pins installed)
Operating voltage: 3.3-5.0 V
Supply current: 100 mA
Output format: 8 analog voltages
Output voltage range: 0 V to supplied voltage
Optimal sensing distance: 0.125" (3 mm)
Maximum recommended sensing distance: 0.25" (6 mm)
Weight without header pins: 0.11 oz (3.09 g)
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
