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 …
PH 1-14 Test Paper Litmus Strips PH Universal indicator Paper with Color ChartRead More
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5pcs TS-300B Turbidity Sensor Detection Module Water Quality Tester Washing Machine Turbidity Transduce
$43.93Sensor & Detector ModuleAdd to cartPrincipleTurbidity sensor TS-300B measures the turbidity (counter of suspended matter) in the wash water. Based on the optical principle, the sensor uses the light-emitting diode and phototransistor to receive the specific wavelength to measure the opacity or other substances of dirty water. concentration. By using phototransistors and light-emitting diodes, the light emitted by the sensor …
3Pcs USB Fan Speed Controller Module Reducing Noise Multi-stall Adjustment Governor DC 4-12V
$20.74Motor PWM Speed ControllerAdd to cartFeatures– USB Fan Air Conditioner – Strong winds and weak wind adjust freely – Stepless Speed Regulation – Suitable for the very common 5.0V USB fan on the market Regulation PrincipleThe non-adjustable fan is a 5V direct fan motor,while the two-stall fan is the interior has a step-up circuit board,when placed in the second gear,the …
5pcs JDY-08 BLE bluetooth 4.0 Serial Port Wireless Module Low Power Master-slave Support Airsync i Beacon
$45.12Smart ModuleAdd to cartFeaturesJDY-08 transparent transmission module is based on bluetooth 4.0 protocol standard, working frequency range is 2.4GHZ range, modulation mode is GFSK, large transmission power is 0db, large transmission distance is 80 meters, TICC2541 chip design is adopted, and users can modify device name by AT command. , service UUID, transmit power, pairing password and other …
ADC Module ADS1100 for Analog Signal Capture Converter Compatible M5StickC ESP32 Mini IoT Development Board Fi
$14.74Converter BoardAdd to cartnull Description ADC_HAT is another type of C-HAT specifically design for M5StickC controller. Same as ADC unit, this is an ADC converter component for stickc. Packed with an ADC converter chip ADS1100, which is a fully differential, 16-bit, self-calibrating, A/D converter. Extremely easy to design with and configure, the ADS1100 allows you to obtain precise …
5pcs Mini MP1584EN DC-DC BUCK Adjustable Step Down Module 4.5V-28V input 0.8V-20V Output
$8.94Power Supply ModuleAdd to cartSpecificationsModel:MP1584Name:DC-DC step-down moduleInput Voltage:4.5V ~ 28VOutput voltage:0.8V ~ 20VOutput Current:3A (Max)Conversion efficiency:96% (maximum)Output RippleSwitching frequency:1.5MHz (highest) typically 1MHzOperating Temperature:-45°C ~ +85°CSize:22mm * 17mm (L * W )Application areas:DIY mobile power, monitor power supply, power buggies, camera power supply, car power, communications equipment supply,etc.Packge included5 x Step Down Module
LILYGO TTGO T-Koala ESP32 WiFi and bluetooth Module 4MB Development Board Based on ESP32-WROOM-32 Micro USB
$26.23Smart ModuleAdd to cartFeatureEspressif official ESP32-WROOM-32 moduleLatest ESP32 version:REV14MB FLASHLithium battery interface, 500mA maximum charging currentCompatible with , MicroPythonDefault firmware:latest MicroPythoTechnical specificationsMicrocontroller:ESP-32Board power supply:(USB) 5VSupport battery:Lipo Battery 3.7VWorking voltage:3.3VFlash:4 MbytesLength:78 mmWidth:27 mmWeight:7.8 gramsPackage includes1 x ESP32 WiFi&bluetooth Broad2 x Pin