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Day/Night switch ideal for your 220V garden or security lights
R89.90  Inc VAT
R74.90  Inc VAT
DC12V Water Level Controller Sensor Module (12V relay level sensor)
Description:

The unit is small and compact, requires only simple wiring. It boasts low power consumption and high switching capacity. And has several functional stability characteristics.

Specifications:

Type: water level sensor module
Power supply current: 20mA
Power supply voltage: DC12V
Power: 20W

Wiring

N  Neutral in
L   12V in

N  Neutral out
L2 12V out

What's in the box

1 x water level sensor module
R459.90  Inc VAT
Waterproof DS18B20 Digital temperature sensor Resistor (Waterproof DS18B20 temp)
Description:

This is a pre-wired and waterproofed version of the DS18B20 sensor.  Handy for when you need to measure something far away, or in wet  conditions. While the sensor is good up to 125°C the cable is jacketed  in PVC so we suggest keeping it under 100°C. Because they are digital,  you don't get any signal degradation even over long distances! These  1-wire digital temperature sensors are fairly precise (±0.5°C over much  of the range) and can give up to 12 bits of precision from the onboard  digital-to-analog converter. They work great with any microcontroller  using a single digital pin, and you can even connect multiple ones to  the same pin, each one has a unique 64-bit ID burned in at the factory  to differentiate them. Usable with 3.0-5.0V systems.

The only  downside is they use the Dallas 1-Wire protocol, which is somewhat  complex, and requires a bunch of code to parse out the communication. If  you want something really simple, and you have an analog input pin,  the TMP36 is trivial to get going.

We toss in a 4.7k resistor, which is required as a pullup from the DATA to VCC line when using the sensor.

Specifications:

Cable specs:

  • Stainless steel tube 6mm diameter by 30mm long
  • Cable is 36" long / 91cm, 4mm diameter
  • Contains DS18B20 temperature sensor
  • If  your sensor has four wires - Red connects to 3-5V, Black connects to  ground and White is data. The copper wire is soldered to the wire  shielding
  • If your sensor has three wires - Red connects to 3-5V, Blue/Black connects to ground and Yellow/White is data

DS18B20 Technical specs:

  • Usable temperature range: -55 to 125°C (-67°F to 257°F)
  • 9 to 12 bit selectable resolution
  • Uses 1-Wire interface- requires only one digital pin for communication
  • Unique 64 bit ID burned into chip
  • Multiple sensors can share one pin
  • ±0.5°C Accuracy from -10°C to 85°C
  • Temperature-limit alarm system
  • Query time is less than 750ms
  • Usable with 3.0V to 5.5V power/data
Contents:
  • 1 x DS18B20 Digital temperature sensor
  • 1 x 4.7k resistor
Resources:

 

R44.90  Inc VAT
12V 1/2" Inlet Feed Water Solenoid Valve N/C (1/2 straight valve)
Description:

Have you ever wanted to control the flow of a liquid using your computer or microcontroller, but didn’t know how?
Well, here’s how: The 12V solenoid controlled fluid valve. Simply connect a fluid source to the fluid input then once the 12Vdc is applied the fluid will start to exit until the 12Vdc signal is removed.

If your signal is 5V , then you can use relay 5Vdc to control the 12Vdc from your microcontroller.

Specifications:

Voltage: 12V DC
Rated Power: 5W
Pressure: Max 8 Bar
Operation model: Normally closed
Port Size: 1/2''
Fluid temperature: 0-100
Usage: water and low viscosity fluids
Flow characteristics: 0.2Bar>1.5L/min 1Bar>7L/min 3Bar>12L/min 8Bar>20L/min;

What's in the box?:

1 x Water Solenoid Valve

Please note:

The actual valve size in the unit is smaller than the port size as you will find with most taps.

R229.90  Inc VAT
Liquid Water level sensor Side Mounted Float Switch (liquid level side mounted)

Description:

The liquid level switch detects the rising level of liquid in a sump or tank. It can be connected to a micro controller. It can then be used to start/stop a pump which then pumps liquid in/out until the level of the liquid has been restored to the point where the pump is switched off again. The switch may be used in a pump station, a sensor, a tank alarm, or other devices.

 

Specification:

Contact Rating: 10W
Switching Voltage: 220V
Switching Current: 0.5A
Breakdown Voltage: 220VDC
Carry Current: 1.0A
Contact Resistance: 100mohm

What's in the box:

1 x Liquid Water level sensor 

Resources:

Python library
Introduction to Buttons and Switches
Types of buttons and switches

 

R39.90  Inc VAT
Hall Water Flow Sensor Flowmeter Water Control 2MPa (flow sensor)
Description:

This product is mainly used for water metering
High amplitude ≥ 4.6V
Low amplitude ≤ 0.5V
Electric strength 1250V/min
Insulation resistance ≥ 100MΩ
Hydrostatic pressure testing ≤ 2.0Mpa

Specification:

The lowest rated working voltage: DC4.5 5V-24V
Maximum operating current: 15 mA (DC 5V)
Working voltage range: DC 5~18 v
Load capacity: ≤ 10 mA (DC 5V)
Use temperature: ≤ 80°C
Operating humidity range: 35%~90%RH (no frost)
Allowing pressure: pressure 2.0Mpa
Temperature: -25~ 80 °C
External threads: 1/2"
Outer diameter: 20mm
Intake diameter: 9mm
Outlet diameter: 12mm

Application:

Water heaters, water vending machines, flow measurement

Package included:

1x Water flow sensor

Flow sensor Wiki
An instructable on how to use the Flow Sensor with Arduino
Adafruit experiment connecting the Flow Sensor to a Raspberry Pi

https://www.ardumotive.com/water-flow-sensor-en.html

RPi: https://www.youtube.com/watch?v=8JXd-2_zJQ0

R79.90  Inc VAT
PP Liquid Water Level Sensor Vertical Float Switch Down White (straight float level)
Description :

A compact vertically mounted float switch which can be mounted at either the top or bottom of a tank (by the supplied 'O' ring and nut) to either rise or fall for activation (internal magnet) of a sealed reed relay.
The sensor is supplied pre-wired with flying output leads.
Float switch is a used to sense the level of liquid within a tank, used to activate a pump, an indicator, an alarm or other device.

Use them with hydroponics, saltwater tanks, freshwater tanks, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, or what ever your project may be
Contains no mercury
Down float switch

Specifications :

  • Maximum Load: 50 W
  • Max Switching Voltage: 100V DC
  • Minimum Voltage: 250V DC
  • Maximum Switching Current: 0.5 A
  • Max Load Current: 1.0 A
  • Max Contact Resistance: 0.4 Ω
  • Temp Rating: -20~ 80℃
  • Net Weight: 12g
  • Material: PP




Package includes :

1 x Liquid Float Switch


Resources:

Python library
Introduction to Buttons and Switches
Types of buttons and switches
R29.90  Inc VAT
DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor (waterproof ultrasonic)
Description:

This waterproof ultrasonic distance sensor is for those applications that are a bit more rugged! 25cm - 450cm sensing range.

We have used the HC-SR04 Ultrasonic Distance Sensor many times  and for many good reasons. It is pretty easy to use, it performs well, and it is very inexpensive. For collision avoidance robots or intruder detection, this sensor is usually all you’ll need.

However, using the HC-SR04 outside is a different story. It is a pretty fragile device and can easily be damaged by dirt, or even high winds. And, above all, it is not waterproof.

For these circumstances you can use this sensor, in more weathered states, even outdoors

Specifications:

Operating voltage: DC 5V
Total current work: 40mA
Acoustic emission frequency: 40khz
Maximum distance: 4.5m
Blind: 25cm

Wiring:
5V (positive power supply)
Trig (control side) RX
Echo (the receiver) TX
GND (negative)

Resolution: about 0.5cm
Angle: 70 degrees
Working temperature: -10 ~ 70 ℃
Storage temperature: -20 ~ 80 ℃

Product Features:

- small size, easy to use;
- low voltage, low power consumption;
- high accuracy;
- strong anti-jamming;
- integrated with wire enclosed waterproof probe, suitable for wet, harsh measuring conditions.

Application:

1 Horizontal distance;
2 obstacle avoidance, automatic control;
3 traffic control;
4 security, industrial control;
5 artificial intelligence, and research

Basic working principle:


(1) using IO port TRIG trigger location, to the high level signal of at least 10us;
(2) module automatically sends 8 40KHz pulse, automatic detecting whether a signal returns;
(3) on signal return, a high level is output through the IO port ECHO, the time duration of the high level is ultrasonic from launch to return. The test distance = (high level time * speed of sound (340M/S)) /2;

Usage

Package Includes:

1 x DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor
R139.90  Inc VAT
DC 12V 90 Degree Electric Solenoid Valve 1/2 Inch Hose Magnetic Water Air Inlet Flow Switch (1/2 angle valve)
Description:

The 1/2" 2 way, 90 Degree, 2 port 12 V DC NPT Normally Closed Electric Solenoid Valve converts electrical signals to pneumatic functions as part of a larger system that allows users to interlock, isolate, and connect individual units of a larger operation.


DC 12V Electric Solenoid Valve 1/2 Inch Hose Magnetic Water Air Inlet Flow Switch

Specification:
MaterialMetal Plastic
ColorAs per picture
VoltageDC12V
Rated Power5W
Pressure0.02- 0.8Mpa
Interface Modes1/2'' Hose
Working Time5 hours at once (Max)
Insulation ClassE
Fluid Temperature0-90°C
SizeL*W*H/75*60*45mm/2.95*2.36*1.77''
Inner diameter14mm/0.55''
External diameter of thread20mm/0.78'' 
 
Features:
Durable and practical.
Made of high quality plastic and metal for long life.
Very convenient to use, open or close when power on or off.
 
Package Includes:
1 x Electric Solenoid Valve

Please note:

The actual valve size in the unit is smaller than the port size as you will find with most taps.
R139.90  Inc VAT
3/4" 12V PP Normally Closed Type Solenoid water Valve (3/4 straight valve)
Description:

This is made of PP material and it is water proof, damp-proof, temperature resistance,insulation and good thermolysis.
Solenoid valves are efficient and durable providing a cost effective and reliable method of controlling water flow in a wide range of uses; from irrigation, where they are suitable for watering large areas such as sports grounds, municipal gardens, agricultural and small gardens, to applications in water-saving devices, water treatment and general industry.

Specifications:


  • Material: PP
  • Voltage: about 12V DC
  • Rated power: about 5W
  • Operation model: normally closed (N/C)
  • Pressure: about 0.02 - 0.8Mpa
  • Port size: about G3/4
  • Fluid temperature: about 0-100 degrees Celsius
  • Usage: water and low viscosity fluids
  • Flow characteristics:
  • about 0.02Mpa>2L/min;
  • about 0.10Mpa>10L/min;
  • about 0.30Mpa>16L/min;
  • about 0.80Mpa>28L/min

Package Includes:
1 x Solenoid valve

Please note:

The actual valve size in the unit is smaller than the port size as you will find with most taps.
R209.90  Inc VAT
3A 250VAC 16mm Horn Metal Waterproof Push Button (metal push button)
Description:

Screw terminals instead of solder tabs, very convenient and easy to install. High round head is easy to press especially for someone with larger fingers. Stainless push button is made of high quality metal material for long term use. Switch with rubber O-ring and IP65 waterproof protection for use in wet or dusty environments.

Push it: on, Release it: off. That is the description of “Momentary”. (It is basically similar to a door bell ringer button) 

Specifications:

Mounting Cut HoleΦ16mm
Head DiameterΦ18mm
Operating StrokeAbout 2.8mm
Operation TypeMomentary (Self Return)
Switch Contact1NO (Normally Open)
Head ShapeFlat
Max Switch Rating3A/250VAC
MaterialNickel plated Brass
Protection RatingIP67/IK08
Operation Temperature-20℃~ 55℃
Panel Thickness1-10mm
ColorSilver
Quantity1pcs
 
Feature:
Stable and reliable performance.
Easy disassembly type.
Easy to clean and maintain.
Excellent quality and long service life.
 
Package Includes:
1 x Metal Button

Read the Docs
R109.90  Inc VAT
SPST 2Pin Heavy Duty 15A 250V ON/OFF Rocker Toggle Switch Waterproof Boot (waterproof boot toggle switch)
Description:

Uses a certain action force to connect the contacts through a certain travel to make circuit conversion. With the characteristics of instantaneous action and small travel between small contacts. 

Widely used in various electronic products, instruments and apparatus, and home appliances etc. fields.

Specifications:

  • Waterproof Boot
  • Model: E-TEN1021
  • Sizes:29 x 16 x 56mm
  • Style: On-Off
  • Power: 15A 250VAC
  • Connector Type: SPST
  • Material(External): Metal
  • Dielectric strength: 1000 V RMS (min)
  • Insulation resistance: 100 Mω(min)
  • Basal material: Poly propylene materials
  • Mechanical life: More than 50.000 cycles
  • Electrical life: More than 10,000 cycles
  • Environment temperature: - 25 degrees ~ 80 degrees
  • Vibration: 10 to 55Hz, 1.5 mm double amplitude
 
Package Includes:

1 X SPST 2Pin Heavy Duty15A 250V ON/OFF Rocker Toggle Switch Waterproof Boot


Resources:

Introduction to Buttons and Switches
Types of buttons and switches

R49.90  Inc VAT
Tank Float Switch Water Level Controller Sensor (Tank Float switch)
Description:

A float switch detects the level of a liquid in a tank or container. It floats on top of the liquid surface and acts as a mechanical switch as the liquid level goes up or down. They control devices like pumps (pump water in or out), valves (open or close inlet/outlets), or alarms to notify users.



Specifications:

Shape: Square
Contacts: NO NC
Rated voltage: 250V(380V)
Rated current: 8A(4A)
Working temperature: 0℃<=water temperature<=65℃
Mechanical endurance: ≥100,000times
Electrical endurance:≥50,000times
Cable length: 1.9m / 74"
Environment: pool, water tank/dam
Control level difference > 40cm

Features:

Easy to use, easy to install,
Safe, reliable, maintenance-free, non-toxic and environmentally friendly.

Package includes:

1 x Float Switch Liquid Level Controller Sensor
R499.90  Inc VAT
220V 10A Waterproof Automatic Light Sensor Switch (Day/Night 220V switch)
Description:

Rainproof performance, making it more suitable for outdoor weather conditions. To turn on or off the light in day and night without manual operation. 
Adjustable sensitivity and photoreceptor
Do not install the control unit in a place extremely darker in daytime, or a place directly by lighting of turning - ON lamp.

Common uses: street light, highway, factories, garden, ports, airports, farm, parks, schools, and other places. 



Specifications:

Product: light control sensor

Power source: 220V

Rated Current: 10A 

Ambient temperature: max 55 (C)


Package includes:

1 x 220V 10A Waterproof Automatic Light Sensor Controller for eg. Garden Lights
Day/Night switch ideal for your 220V garden or security lights
R89.90  Inc VAT
Waterproof In Line Standard Blade Fuse Holder (Standard Blade fuse holder)
Description:
 
A safety device consisting of a strip of wire that melts & breaks an electric circuit if the current exceeds a safe level.
Waterproof your electrical connection using this fuse holder. A safety addition to your 3D printer, CNC and several other electronics
 
Specifications:
 
Suitable for 6v, 12v & 24v systems (Maximum voltage 32v)
 
Package Includes: 
 
1 x Standard Blade Fuse holder
1 x 10A Blade Fuse included
R49.90  Inc VAT
Soil Moisture Sensor 12V DC Relay Control Module Automatic watering switch (automatic water relay sensor)
Description:

When the soil moisture is lower than preferred setting, the relay will automatically pull in, start the sprinkler, water pump etc. until the moister reaches the desired humidity level and automatically stop.
Product use: Through the potentiometer, adjust to the desired soil moisture level

Specifications:

Electrical parameters: Supply voltage: 12VDC
Input current: more than 100mA Relay Load Max: 10A 250V AC or 10A 30V DC

Module instruction:

1 sensors applied to the detection of soil moisture; Module
2. Blue potentiometer is used to adjust soil moisture level, clockwise adjustment and control the humidity will be bigger, counterclockwise smaller; 3. Due to module delay function, adjust the humidity value, wait about 5-8 seconds, see if the the relay state changed, the green LED lamp will also have corresponding change, until adjusted to meet the requirements.


Package Includes:

1 x Soil moisture control module
1 x Soil sensor
2 x 20cm long DuPont lines
R74.90  Inc VAT
Waterproof 3A 5.5mm X 2.1mm DC Socket Plug (socket 5.5x2.1 panel mount)
Description:

Connector socket for 5.5mm x 2.1mm DC Jack
Panel mount

What's in the box?

1 x socket plug
R18.90  Inc VAT
Grove - Water/Rain Sensor (Grove water/rain sensor)
Description:

This sensor works by having a series of exposed traces connected to ground and interlaced between the grounded traces are the sens traces. The sensor traces have a weak pull-up resistor of 1 MΩ. The resistor will pull the sensor trace value high until a drop of water shorts the sensor trace to the grounded trace.

For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your use of the product.

Believe it or not, this circuit will work with the digital I/O pins of your Arduino or you can use it with the analogue pins to detect the amount of water induced contact between the grounded and sensor traces. Suitable to detect rainfall, tank overflow, water leakage.

You can get grove HAT for Raspberry Pi or if you want to use this module with Arduino board, you can get grove shield for Arduino. Also great for the Maker Pico board with grove adapters

Note: Controllers are not included.

Features and specifications:
  • Grove compatible interface
  • Low power consumption
  • 2.0cm x 2.0cm twig module
  • High sensitivity
  • Can be use for rainfall detecting, liquid leakage, tank overflow detector
  • Working Voltage: 4.75V to 5.25V

What's in the box?

1 x water/rain sensor
1 x grove connector
R74.90  Inc VAT
HHCC Soil Water Fertility Smart Tester Sensor (HHCC flora monitor)
This is China version, you can use it all over the world,Can switch multiple languages
The YouPin Flower Monitor could not be compatible with some Lenovo smart phone;

Product Features:

Easy and convenient to use and operate
Provide a healthy growing environment for all plants
Easily check on the condition of your plants
Can recognize different kinds of plants via smart phone
Open Bluetooth and connect smart home APP to manage your plants

Product Description:

Download the "flower care" app from the app store and connect the device. Plug & Play basically.
Brand : YouPin
Item : YouPin Flora Monitor
Wireless connections: Bluetooth 4.1 BLE
Operating voltage: 3V
Battery: CR2032 button battery (included)

Function:

Waterproof design around battery compartment;
IP5 Waterproof grade: anti spray type waterproof, any direction directly by the water jet, no harmful effects;
Nutrient testing, soil moisture detection, temperature detection, light detection;
Precise detection of light and temperature water and fertilizer;
Cloud Plant Database;
Phone Bluetooth connection.

What's in the box?

1 x HHCC flora sensor

Brian shows how he connected it to RPi4
https://brianp.de/posts/2020/plant-monitoring-xiaomi-miflora-rasperrypi-grafana/
R419.90  Inc VAT
10A 380V ON/OFF Waterproof Push Button Switch KAO-5 (waterproof on/off)
Description :

This product is made of plastic, and is not only waterproof, but also oil proof. Self-locking for on push button, automatic reseat for off push button. 
Convenient to use and very durable. Easy to install and good looking.

Specifications :

  • Material : Plastic
  • Current : 10A
  • Voltage AC : 250V/380V
  • Size : 90 x 56 x 50mm
  • ON push button : self-locking
  • OFF push button : automatic reset.
  • Waterproof design.
 
Package includes :
 
1 x Water Proof Push Button Switch


Resources:

Introduction to Buttons and Switches
Types of buttons and switches
R229.90  Inc VAT
12V Mini Peristaltic Titration Pipeline Water Pump (12v peristaltic pump)
Description:

Miniature peristaltic pump




Features:

Applicable power supply: DC 12V
Working environment: temperature 0-40℃, relative humidity < 80%
Flow direction of medium: the flow direction of peristaltic pump depends on the positive and negative stages of power supply. The terminals can choose the positive and negative stages at will
Equipped pump pipe (IDxOD) : 3x5 (inside diameter X outside diameter)
Flow range: 9ml/min -150ml/min
Speed range: 0.1-60 rPM
Current: 250-300 ma
Motor ruler: diameter 32 x height 23(mm)
Center distance of mounting hole: 48.5mm
Weight of mini peristaltic pump: 0.15kg

What's in the box?

1 x peristaltic pump
R269.90  Inc VAT
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