Best Lead Detection Kit

Instapark INCC1205 12V / 5A Waterproof PWM Solar Charge Controller

PWM (Pulse Width Modulation) technology with temperature compensation protects battery from over-charging.
4-LED Battery charge status LED indicators.
Suitable for both sealed and flooded lead-acid batteries & automatic voltage detection, 12 volts only.
Maximum 5 amp under load, compatible with Instapark solar panels and many other manufacturers.
Includes a plug-n-charge connection cable for the Mercury27 solar charger.

1 x RLK16-810B8-A 8MP Smart PoE Kit with Person/Vehicle Detection (8x18M CAT5 Ethernet cables are included for connection).
1 x RLC-823A 8MP Smart PoE PTZ Camera with Person/Vehicle Detection, Spotlights, Two-way Talk, Optical Zoom (1M CAT5 Ethernet cables are included for test purpose).

Microphone sensor can be used to detect the sound intensity of ambient,with analog output and threshold level output flip.
Two outputs: AO, analog output, real-time output voltage signal of the microphone.
KY-037 high sensitivity sound microphone sensor detection module diy kit, good for PIC AVR.
Package includes: 8pcs sound detection sensor module.

...o no need replace the battery.(PS. the sensor also can be powered by the DC5V-12V power adapter if you do not want to use the included solar panel).
WIDE RANGE OF APPLICATION- the wireless range from the sensor to the alarm receiver is up to 1/2 mile(actual range will vary depending on the local terrain).
the sensor detection range is up to 50 feet(it has 3 sensitivities adjustable,Hi=50ft,Mid=30ft.
Ideal for driveways,walking paths,and anywhere of your property you want to be alerted.
EXTREMELY RELIABLE- improving the design of the infrared detection chip and the detection angle to reduce the false alarms from the sunlight/rain/fog/snow/wind/temperature change and etc. the outdoor motion sensor is waterproof(IP66),fully-enclosed design.the working temperature range is from -30 ℃ to 70℃.
DIY DESIGN,SUPER EASY TO SET UP IN MINUTES-The KIT has been programmed already before shipped.
the sensor is solar powered and no need replace batteries.
wireless communication between the sensor and the alarm receiver,so the installation time can be as little as a few minutes.
FULLY EXPANDABLE SYSTEM- the kit includes one solar powered motion sensor and one AC/Battery powered alarm receiver.expandable up to 32 sensors and unlimited alarm receivers for ....

1 x RLK8-820D4-A 8MP Smart PoE Kit with Person/Vehicle Detection (4x18M CAT5 Ethernet cables are included for connection).
1 x RLC-823A 8MP Smart PoE PTZ Camera with Person/Vehicle Detection, Spotlights, Two-way Talk, Optical Zoom (1M CAT5 Ethernet cables are included for test purpose).

1 x RLK8-810B4-A 8MP Smart PoE Kit with Person/Vehicle Detection (4x18M CAT5 Ethernet cables are included for connection).
1 x RLC-823A 8MP Smart PoE PTZ Camera with Person/Vehicle Detection, Spotlights, Two-way Talk, Optical Zoom (1M CAT5 Ethernet cables are included for test purpose).

Detects lead on most surfaces within 30 seconds.
EPA recognized. Easy to use, disposable 3M LeadCheck swabs will work on any surface, instantly turning bright pink when lead is present..
Simple to use just crush, shake and swab. Red Means Lead.
Test confirmation card to verify results in every kit.

The Pico Car Kit is a fun, Raspberry Pi Pico based, robotics kit for beginners (14+ Teens), and adults who wish to learn Raspberry Pi Pico....
Raspberry Pico Car has a variety of modules, including ultrasonic modules, grayscale sensors, speed sensors, etc and three 8-bit WS2812 RGB boards.....
Pico robot building kit can perform obstacles avoidance, object tracking, speed measurement, mileage calculation, line following, and cliff detection.....
This robotic kit also includes MicroPython code, tutorials, as well as the customizable application SunFounder Controller..
The Raspberry Pi Pico-4wd robot car kit is completely open source, with diagrams of structure, schematics and source code available..

✔EASY TO USE: Clearly labeled materials, and safe to use reagents make the product ideal for technical and non technical users alike for detection....
✔DETECTION LEVELS: Arsenic 0, 5, 10, 20, 30, 40, 50, 60, 80, 100, 150, 200, 250, 300, 400, 500, >500 ppb (µg/L).
✔COMPLETE KIT: Contains 3 Reagents, Easy Read Color Chart, 5 Arsenic Test Strips, Reaction Bottle, Yellow Cap, and a White Cap with Turret.
✔ACCURATE AND RELIABLE: Technology Verified by USEPA ETV program | Components are tested by Quality Control personnel at each step and are rejected....
✔MADE IN USA QUALITY: ITS, manufactures water quality testing products in their USA facility in an environment that allows for reproducibility,....

✔EASY TO USE: Incorporates the patented eXact Strip reagent delivery method and other advanced technologies that offer faster, safer, easier, and more precise water testing with a digital readout so no color matching required which works in conjunction with the eXact iDip app for iOS and Android smart devices.
✔DETECTION RANGES: Lead in Water: 1 - 500 ppb (µg/L)--- Mercury in Water: 10 - 600 ppb (µg/L)--- Cadmium in Water: 10 - 600 ppb (µg/L)--- Lead in Soil: 18 - 3000 mg/kg.
✔CONTENTS: eXact LEADQUICK Photometer, Cleaning brush, Instruction manual *Carry case and reagent bottles NOT included.
✔ACCURATE AND RELIABLE: Components are tested by Quality Control personnel at each step and are rejected if they are outside of specifications. Standards are prepared using calibrated equipment, and concentrations are confirmed by recognized reference methods.
✔ HIGHEST QUALITY: ITS, manufactures test strip products in their USA facility in an environment that allows for reproducibility, accuracy, and traceability based on Good Manufacturing Practices..