Category: PH Test Strips
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0-9999 PPM Digital PH Meter TDS Tester Aquarium Pool Hydroponic Water Monitor
$62.76PH Test StripsAdd to cartDescriptiona. This digital pen style PH meter is an ideal instrument for any aquarium, the fishing industry, swimming pools, school laboratories, food & beverage, etc. And, this Digital TDS Water Quality Tester is ideal for all basic water testing applications.b. This product is highly efficient and accurate due to its advanced microprocessor technology.c. Hold Function:stores …
0-9999 PPM Digital PH Meter TDS Tester Aquarium Pool Hydroponic Water MonitorRead More
100PCS/Box PH Test Strips Precision 4-color Comparison 0-14 PH Measuring Drinking Water Quality Strips
$7.68PH Test StripsAdd to cart100PCS/Box PH Test Strips Precision Four-color Comparison 0-14 PH Measuring Drinking Water Quality StripsFeatures– Four colour detection, high sensitivity:compared to three-colour detection, the simple four-colour pH test strip is moderately long. Each strip is approx. 8 cm tall. Detection makes it easier for people to determine the value of the liquid tested, which allows for …
PH 1-14 Test Paper Litmus Strips PH Universal indicator Paper with Color Chart
$12.14PH Test StripsAdd to cartSpecificationComes with PH 1-14 color chart. The scale reads from 1 to 141 – 3 indicates a very acidic substance; 4 – 6 indicates an acidic substance; 7 indicates neutral; 8 – 11 indicates alkalinity; 12 – 14 indicate a very high level of alkalinity.Features1. The test strip color changes must be matched with the …
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K202 Low Power Consumption Fingerprint Control Board Switch Fingerprint Access Control Board DC12V
$17.48Other Module BoardAdd to cart>>>Manual:Click here to openSpecifications·P1:Power supply:DC12V·Output:Relay(Max. current:10A)·Standby current:15uA·Fingerprint capacity:120 pieces·Size:64.4*25.4mm·P2:MX 1.0mm space 6 Pin Fingerprint Module(can connect R502,R502-A,R502-AW,R503)·P3:MX 1.25mm space 6 Pin Fingerprint Module(can connect R300,R301T,R303,R303T,R305,R306,R307,R501)K202 is designed for low power consumption, the power supply is DC12V, the relay time can be adjusted by rotating the button, relay time:0.5-13 seconds.It is very easy to register fingerprint, …
intelligent Voice Recognition Module AC108 Audio Decoding Module 4 Microphones Decoder for Smart Speaker DIY
$28.42Expansion Board & ShieldAdd to cartSize ConversionInchesCentimetersPlease according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.Feature1. Based on RASPBERRY PI 40PIN interface, suitable for RASPBERRY PI series motherboards;2. Support RASPBERRY PI ZERO / ZERO W / 2B / 3B / 3B + / 4 and other development …
GP2Y1010AU0F Dust Sensor Module Dust Particle Concentration PM2.5 Haze Detection
$32.79Sensor & Detector ModuleAdd to cartFeaturesEasy to use:only one AD acquisition pin and one control pin are neededAnalog output:The output voltage is linearly related to the dust concentration in the effective range, with a built-in attenuation circuit, the output voltage does not exceed 1.5VSensitivity:0.5V/(100┢g/m3)Effective range:500┢g/m3Wide power supply range:built-in booster circuit, working voltage range 2.5V to 5.5VLow power consumption:within a sampling …
GP2Y1010AU0F Dust Sensor Module Dust Particle Concentration PM2.5 Haze DetectionRead More
3pcs TM1637 4 Bits Digital LED Display Module 7 Segment 0.36 inch RED Anode Tube 4 Serial Driver Board for
$11.00Display ScreenAdd to cartIntroductionThe module is a 12-pin display module with a 4-point common digital tube (0.36 inch) with a clock point. The driver chip is TM1637. It only needs 2 signal lines to enable the MCU to control the 4-bit 8- Segment digital tube.FeaturesDigital Tube:4-digit common anode with a 0.36-inch digital tube with a score point, highlighted …
1080P HDMI Male to 3RCA Audio Video AV Output Transmit Cable Adapter 1.5M/5Feet
$7.86Expansion Board & ShieldAdd to cartFeatures– Gold plated connectors for better signal transfer.– New generic HDMI Male to 3 RCA Audio Video AV Component.– HDMI to RCA cable is designed to connect and transfer signals from HDMI port to RCA port.– High quality HDMI- RCA cable suitable for use in HDTV, Home Theater systems, and all other HDMI to RCA …
1080P HDMI Male to 3RCA Audio Video AV Output Transmit Cable Adapter 1.5M/5FeetRead More
LED Strip Switching Power Supply AC110V-240V to DC12V 60W 5A 160*40*32mm S-60-12
$35.59Power Supply ModuleAdd to cartFeature1. International AC input range2. High efficiency, low working temperature3. Short circuit,overload,over-current protection4. 100% fully load burn-in test5. Built-in EMI filter, low ripple noise6. Low cost, high reliability7. CE and FCC approvalSpecification1. LED switching power supply using pulse width modulation (PWM) switching technology designed to ensure power supply stability and high efficiency. 2. Product interference, …
LED Strip Switching Power Supply AC110V-240V to DC12V 60W 5A 160*40*32mm S-60-12Read More
5pcs TB371 4 Key MCU Keyboard Button Board Compatible UNO MEGA2560 Pro Mini Nano Due for Raspberry Pi Teensy++ Geekcreit for Arduino – products that work with official for Arduino boards
$14.12Other Module BoardAdd to cartSize ConversionInchesCentimetersPlease according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.Description1. 4-button Common Cathode key module(When pressed output low level). 2. GND K1 K2 K3 K4′ 4 PIN OUT 2.54mm3. Working voltage:DC 0-48V 4. Size:12.7 x 33mm5. It can be inserted directly …
TCRT5000 infrared Reflective Switch IR Barrier Line Track Sensor Module
$4.36Sensor & Detector ModuleAdd to cartTCRT5000 Infrared Reflective Switch IR Barrier Line Track Sensor ModuleFeaturesTCRT5000 sensor of infrared emission diode constantly launch infrared, the infrared ray is emitted when the intensity of reflected back has not been reflected or but is not big enough, the light activated triode has been in the off state, the output end of the module …
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