The sensors is compared based on how it works and its technical specifications.
NO.
|
SENSOR
|
ACTIVITY
|
TECHNICAL SPECIFICATIONS
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1.
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Liquid PH Value
Detection Sensor Module Monitoring Control Kit set (individual probe is available)
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- The PH electrode has a single
cylinder that allows direct connection to the input terminal of a PH meter,
controller, or any PH device, which has a BNC input terminal.
- Accurate and reliable that can give
almost instantaneous readings.
- BNC Connector suitable for most PH
meter and controller.
- Suitable for wide
range of application: Aquariums, Hydroponics, Laboratory.
|
- pH range: 0-14 PH
- Temperature range: 0-60 Celsius
- Zero-point: 7 ± 0.5PH
- Alkali Error: 0.2PH
- Theoretical Percentage Slope: ≧98.5%
- Internal Resistance: ≦250MΩ
- Response Time: ≦1min
- Operating Temperature: 0-60 Celsius
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2.
|
pH
Sensor Kit
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- This kit includes everything including buffer solutions for calibration, pH probe, and board to connect directly to the microcontroller,
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- pH Range: 0-14
(Na+ error at
>12.3 pH)
- Speed of Response:
95% in 1
second
- Isopotential point:
pH 7.00 (0 mV)
- Offset: +/- 0.20 pH
- 38400 baud rate default
|
3.
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Gravity: Analog pH
Sensor / meter Kit
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- Instant connection to the Arduino to get pH measurements at ± 0.1pH (25 ℃)
- Can be use in aquaponics or fish
tanks or other materials that need measurements.
- This is a laboratory probe, it
can't be immersed in the liquid for too long time.
|
- Module Power : 5.00V
- Measuring Range:
0-14PH
- Accuracy : ± 0.1pH(25 ℃)
- Response Time : ≤ 1min
- pH Sensor with BNC
Connector
- pH2.0 Interface
- Gain Adjustment
Potentiometer
- Power Indicator LED
|
4.
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1.5M NTC Thermistor Accuracy Temperature
Sensor 10K 1% 3435 Waterproof Probe
|
- Temperature-sensing elements made of semiconductor material that has been sintered in order to display large changes in resistance in proportion to small changes in temperature
- Resistance can be measured by using a small
and measured direct current, or dc, passed through the thermistor in order to
measure the voltage drop produced
- Stainless steel sheath and waterproof
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- Measurement range:
-40 to 120 °C
- Length of wire: 1.5 m
- Type: NTC 10k±1%
- Measure environmental
temperatures using
Arduino ADC and this
10k NTC LINK
- Typical Dissipation
Constant: 5mW/ °C
- Probe insulation: >100MOhm
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