Alarm Sensors

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Alarm Sensors


Displaying products for Alarm Sensors - from our range of leading brand manufacturers.

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B192
B192 - Water Level Sensor Kit

HK01148

Water Level Sensor Kit

KEMO ELECTRONIC

Whenever two bare wires have contact with water, the light emitting diode will light up. The device is suitable to release an alarm in case of overflowing water in barrels or gutters. Supplied in kit form. • Operating voltage: 9V DC • Power consumption: 15...

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101020008
101020008 - Grove Moisture Sensor

MK00321

Grove Moisture Sensor

SEEED STUDIO

Grove - soil moisture sensor can measure soil moisture for plants. The soil moisture sensor consists of two probes that allow the current to pass through the soil and then obtain resistance values to measure soil moisture content. It can be used to decide ...

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101020011
101020011 - Grove Temperature & Humidity Sensor

MK00315

Grove Temperature & Humidity Sensor

SEEED STUDIO

Grove - DHT11 temperature & humidity sensor is a high quality, low-cost digital temperature, and humidity sensor based on the DHT11 module. DHT11 is the most common temperature and humidity module for Arduino and Raspberry Pi. It is widely favoured by hard...

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EKMC1601112
EKMC1601112 - Sensor, Motion, 5m, Black

SN36760

Sensor, Motion, 5m, Black

PANASONIC

EKMC1601112 is a VZ series high-sensitive human detection PIR motion sensor. The high-density embedded circuit design eliminates external sensing circuits. Advantages include reduced development and design schedules. Reduction of current consumption allows...

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PSG04177
PSG04177 - 3V to 5V Ultrasonic Distance Sensor, Front Header HC-SR04

SN36938

3V to 5V Ultrasonic Distance Sensor, Front Header HC-SR04

MULTICOMP PRO

PSG04177 is an ultrasonic distance sensor. It has been engineered to work down to 3V making it absolutely ideal to connect directly to Micro Bit or Raspberry Pi GPIO pins using the 3.3V power. Works identically to the standard product although you will not...

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PH026
PH026 - PH Gas Leak Detector with Brush, 250ml

TL19461

PH Gas Leak Detector with Brush, 250ml

ARCTIC HAYES

Specially formulated to trace positive pressure leaks in pipelines and fittings. No need to submerge parts or lines to test. Non-flammable and non-corrosive, suitable for use on gas, air and nitrogen leaks. The micro-porous foam instantly highlights the sm...

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75072670
75072670 - MN21 12V Car Alarm/Transmitter Batteries, 2 Pack

BT04754

MN21 12V Car Alarm/Transmitter Batteries, 2 Pack

DURACELL

Duracell's MN21 12V battery fits approximately 85% of car alarm remote controls.

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Pack of  2

1+ £2.73 (£3.28) 10+ £2.63 (£3.16) 25+ £2.48 (£2.98) 50+ £2.37 (£2.84)

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AC T3 8C WHT 100M
AC T3 8C WHT 100M - 8 Core Alarm Cable, 0.22m², White, 100m

CB20033

8 Core Alarm Cable, 0.22m², White, 100m

PRO POWER

• General purpose signal and alarm cable • Ideal for use in alarm installations or where low Voltages are used • Copper clad aluminium conductors • CE CPR - Cat Eca

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Reel of  1

1+ £16.55 (£19.86) 3+ £15.73 (£18.88) 5+ £14.84 (£17.81)

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TC-MD 50
TC-MD 50 - Digital Pipe, Wire & Stud Detector/ Finder

TL19748

Digital Pipe, Wire & Stud Detector/ Finder

EINHELL

The Einhell digital detector TC-MD 50 is an indispensable helper for DIY enthusiasts: in the home, at the building site or for renovation work. The digital detector is unbeatable for reliable localization in walls. This tool reliably detects ferrous and no...

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FS-2513P
FS-2513P - Sensor, Piezo Film

SN36520

Sensor, Piezo Film

PROWAVE

Pro-Wave now presents a series of mechnoelectrical sensors and detectors produced by advanced piezoelectric polymer film technology. The polymer film of polyvinylidene fluoride (PVF2) exhibits a conspicuous piezoelectric effect and also has high compliance...

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101020132
101020132 - Grove Light Sensor - v1.2

MK00575

Grove Light Sensor - v1.2

SEEED STUDIO

Grove - light sensor v1.2 is an analogue module and can output various electrical signals which can be converted to different ranges. It integrates LS06-S photoresistor, a high-sensitive and reliable photodiode, to detect the intensity of light in the envi...

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DFR0067
DFR0067 - Gravity Digital Temperature & Humidity Sensor for Arduino, DHT11

SC15096

Gravity Digital Temperature & Humidity Sensor for Arduino, DHT11

DFROBOT

DFR0067 is a Gravity: DHT11 temperature & humidity sensor module for Arduino. The DHT11 temperature and humidity sensor is as powerful as it used to be but easier to use. This DHT11 Arduino temperature and humidity sensor has a full range temperature compe...

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SEN-13763
SEN-13763 - Humidity & Temperature Sensor Breakout Board, Si7021

MK01014

Humidity & Temperature Sensor Breakout Board, Si7021

SPARKFUN ELECTRONICS

Ultra compact breakout board based around the Si7021 sensor that delivers highly accurate digital humidity and temperature measurement, ideal for environmental sensing and data logging applications. • Highly accurate digital humidity and temperature measur...

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4058075260436
4058075260436 - 1W Linear LED USB Mobile Battery with PIR Sensor, 4.2V, 172lm, 4000K, Cool White, IP20

LA09219

1W Linear LED USB Mobile Battery with PIR Sensor, 4.2V, 172lm, 4000K, Cool White, IP20

LEDVANCE

• Functional design for large range of uses • For indoor use only • Integrated light and motion sensor • Easy and quick installation • Equipped with a mode for auto or on/off switch • Battery rechargeable via USB cable (supplied) • Dimensions (LxWxH): 200...

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SEN-17777
SEN-17777 - Ultrasonic Distance Sensor

MK01031

Ultrasonic Distance Sensor

SPARKFUN ELECTRONICS

High performance sensor breakout board that provides non-contact distance readings from 2cm to 400cm. The board is fitted with Qwiic connectors for intuitive I2C communication and daisy-chaining with other Qwiic devices. • Built around the STM8L051 MCU the...

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SEN-17372
SEN-17372 - Qwiic PIR Sensor Breakout, 170µA

MK01035

Qwiic PIR Sensor Breakout, 170µA

SPARKFUN ELECTRONICS

Breakout board fitted with a passive, low profile PIR sensor that detects movement in close proximity to the sensor. The sensor is optimised to provide motion-sensing functions for continuously powered applications. • Panasonic EKM-series PIR offers digita...

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LM75AD,118
LM75AD,118 - Temperature Sensor IC, Digital, +/- 3°C, -55  Degrees C to 125 Degrees C, SOIC, 8 Pins

SC19243

Temperature Sensor IC, Digital, +/- 3°C, -55 Degrees C to 125 Degrees C, SOIC, 8 Pins

NXP

The LM75A is a temperature-to-digital converter using an on-chip bandgap temperature sensor and Sigma-delta A-to-D conversion technique. The device is also a thermal detector providing an overtemperature detection output. • Improved temperature resolution ...

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SEN-17374
SEN-17374 - Qwiic PIR Sensor Module, 170µA

MK01033

Qwiic PIR Sensor Module, 170µA

SPARKFUN ELECTRONICS

Passive, low profile PIR sensor board that detects movement in close proximity to the sensor. The module features an EKM-series Panasonic PIR combined with an ATTiny84 MCU and Qwiic connectors for easy integration and prototyping. The sensor is optimised t...

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ACS712ELCTR-20A-T
ACS712ELCTR-20A-T - Hall Effect Linear Current Sensor, 20A, SOIC8, 80kHz, 5.5V

SC19113

Hall Effect Linear Current Sensor, 20A, SOIC8, 80kHz, 5.5V

ALLEGRO MICROSYSTEMS

ACS712ELCTR-20A-T is an Allegro™ fully integrated, hall-effect-based linear current sensor IC with a low-resistance current conductor. It provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications s...

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SEN-17375
SEN-17375 - Qwiic Low Power PIR Sensor Module, 1µA

MK01032

Qwiic Low Power PIR Sensor Module, 1µA

SPARKFUN ELECTRONICS

Passive, low profile PIR sensor board that detects movement in close proximity to the sensor. The module features an EKM-series Panasonic PIR combined with an ATTiny84 MCU and Qwiic connectors for easy integration and prototyping. Due to the low current dr...

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SEN-17373
SEN-17373 - Qwiic Low Power PIR Sensor Breakout, 1µA

MK01034

Qwiic Low Power PIR Sensor Breakout, 1µA

SPARKFUN ELECTRONICS

Breakout board fitted with a passive, low profile PIR sensor that detects movement in close proximity to the sensor. Due to the low current draw (1µA) of this sensor, it is ideal for battery powered applications. • Panasonic EKM-series PIR offers digital o...

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WSAK201
WSAK201 - Panda Plant Guardian Moisture Sensor Kit

HK01760

Panda Plant Guardian Moisture Sensor Kit

WHADDA

Simple moisture sensor kit with gold plated probes and cute panda PCB. The kit is easy to assemble and simply goes into the soil of your houseplant. The panda's RGB LED eyes will light up every 30 seconds to show the status of the soil; either too dry, too...

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911401855982
911401855982 - LED Ledinaire Wall-Mounted Bulkhead with Microwave Sensor, 4000K, 1700lm, IP65, White

LA09925

LED Ledinaire Wall-Mounted Bulkhead with Microwave Sensor, 4000K, 1700lm, IP65, White

PHILIPS LIGHTING

• Colour temperature: 4000K • 1700 Lumens • UV-resistant for outdoor use • Supplied with tamperproof screws

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SEN-18521
SEN-18521 - Qwiic Digital Temperature Sensor Breakout, AS6212

MK01019

Qwiic Digital Temperature Sensor Breakout, AS6212

SPARKFUN ELECTRONICS

Compact breakout board based around the AS6212 sensor that delivers highly accurate digital temperature measurement, ideal for integration into a range of projects. The board is fitted with dual Qwiic connectors for faster prototyping as part of the Qwiic ...

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WSHA8067
WSHA8067 - Temperature Sensor Kit

HK01785

Temperature Sensor Kit

WHADDA

Simple and effective DIY sensor kit that can be used to measure indoor and outdoor temperatures. • Temperature range: -20°C to 70°C • 2° Full range accuracy • 3 Wire system: GND, +V and OUT • Power Supply: 12V DC (0-5V OUT), 15V DC (0-10V OUT) • Supplied a...

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