Alarms

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Alarms


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

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SEN-17731
SEN-17731 - Qwiic Soil Moisture Sensor

MK01036

Qwiic Soil Moisture Sensor

SPARKFUN ELECTRONICS

Simple sensor board with Qwiic connector suitable for measuring the moisture in soil and similar materials. The two exposed pads act as probes and function as a variable resistor; the more water in the soil, the lower the resistance. • Simply connect the V...

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MP780768
MP780768 - Non-Contact AC Voltage Detector, IP67, 24V to 1kV, LED, Buzzer, Vibration Mode, CAT IV 1000V

IN09267

Non-Contact AC Voltage Detector, IP67, 24V to 1kV, LED, Buzzer, Vibration Mode, CAT IV 1000V

MULTICOMP PRO

MP780768 from Multicomp Pro is a professional grade voltage detector, designed with IP67 dust & water resistance and drop proof up to 2 metres. This durable device is suitable for use in harsh environments and includes a unique vibration mode. Applicatio...

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1+ £8.44 (£10.13) 3+ £7.96 (£9.55)

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Multicomp Pro Non-Contact Voltage Detectors
LM809M3-3.08/NOPB
LM809M3-3.08/NOPB - Voltage Detector, 1.2V - 5.5V Supply, 3.08V Threshold, 240ms Delay, Active-Low, SOT-23-3

SC18938

Voltage Detector, 1.2V - 5.5V Supply, 3.08V Threshold, 240ms Delay, Active-Low, SOT-23-3

TEXAS INSTRUMENTS

The LM809M3-3.08/NOPB is a 3-pin Microprocessor Supervisory Circuit with active-low RESET output. The supervisory circuit can be used to monitor the power supplies in microprocessor and digital systems. It provides a reset to the microprocessor during powe...

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HC-SR04
HC-SR04 - Ultrasonic Distance Sensor, 5V, 40kHz, Range 4m, TTL Level

SN36696

Ultrasonic Distance Sensor, 5V, 40kHz, Range 4m, TTL Level

MULTICOMP

This version of the ubiquitous HC-SR04 has been engineered to work down to 5V making it absolutely ideal to connect directly to MicroBit or Raspberry Pi GPIO pins using the 5V power. • Operating voltage: 5V • Operating current: 15mA • Sensor angle: 15°C • ...

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PP01433
PP01433 - 8 Core Unscreened Alarm Cable, Black, 100m

CB19512

8 Core Unscreened Alarm Cable, Black, 100m

PRO POWER

• General purpose signal and alarm cables • Ideal for use in alarm installations or where low Voltages are used • Copper-coated aluminium conductors

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1+ £21.43 (£25.72) 3+ £20.28 (£24.34)

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FIRCERT
FIRCERT - Test Accessory, Fire Alarm Certification Book, Fire Alarm Systems

IN09176

Test Accessory, Fire Alarm Certification Book, Fire Alarm Systems

KEWTECH

Professional installation certificates for fire alarm systems. • 2x Fire alarm design certificates • 4x Fire alarm installation certificates • 4x Fire alarm commissioning certificates • 4x Fire alarm acceptance certificates • 3x Fire alarm modification cer...

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Kewtech - Calibration & Certification
FIRLOG
FIRLOG - Test Accessory, Fire Alarm Log Book, Fire Alarm Systems, Kewtech - Calibration & Certification

IN09175

Test Accessory, Fire Alarm Log Book, Fire Alarm Systems, Kewtech - Calibration & Certification

KEWTECH

Complete log book for on-site Fire Alarms. Gives reference advice and contains the essential details of your system as well as the fire alarm testing register. • Covers your legal obligations • Everything in one document • Site information • Locations of w...

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Kewtech - Calibration & Certification
101020008
101020008 - Sensor Module, Grove, Soil Moisture Sensor, 3.3 V to 5 V / 35 mA Supply

MK00321

Sensor Module, Grove, Soil Moisture Sensor, 3.3 V to 5 V / 35 mA Supply

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 - Sensor Module, DHT11, Temperature & Humidity Sensor

MK00315

Sensor Module, DHT11, 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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DL7206
DL7206 - Microwave Leakage Detector, 2450 MHz, 0 W/cm³, 9.99 W/cm³, Digital

IN09214

Microwave Leakage Detector, 2450 MHz, 0 W/cm³, 9.99 W/cm³, Digital

DI-LOG

• Alarm sounds and red LED light flashes when microwave leakage is detected • Large, clear backlit LCD display for easy reading • Microwave leakage detection 0-0.99mW/cm² • Alarm level at 5.0mW/cm² • Leakage volume displayed in mW/cm² with 0.01 resolution...

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1+ £89.00 (£106.80)

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MP780770
MP780770 - Non-Contact AC Voltage and Magnetic Field Detector, IP67, 24V to 1KV, LED, Buzzer, CAT IV 1000V

IN09268

Non-Contact AC Voltage and Magnetic Field Detector, IP67, 24V to 1KV, LED, Buzzer, CAT IV 1000V

MULTICOMP PRO

MP780770 from Multicomp Pro is a professional grade magnetic field and voltage detector, designed with IP67 dust & water resistance and drop proof up to 2 metres. This durable device is suitable for use in harsh environments and is able to detect magnetic ...

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Multicomp Pro Non-Contact Voltage Detectors
GVCR02BK
GVCR02BK - Radio Curve Rechargeable Alarm Clock Radio, Black

AV29606

Radio Curve Rechargeable Alarm Clock Radio, Black

GROOV-E

A clean, simple design with a large and friendly display. Charge your clock radio to make it portable and take it on the go with up to 9 hours playback! Now you can enjoy the Radio Curve in your home and outdoors. • USB or Battery operated • Rechargeable b...

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B192
B192 - KIT, WATER LEVEL SENSOR

HK01148

KIT, WATER LEVEL SENSOR

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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110060024
110060024 - Starter Kit, Arduino, Compatible Shield, Base Shield, Sensors, Accessories

SC13821

Starter Kit, Arduino, Compatible Shield, Base Shield, Sensors, Accessories

SEEED STUDIO

Grove starter kit for Arduino is one of the best Arduino starter kit for beginners. It includes one Arduino compatible shield - base shield and 14 additional Arduino sensors and accessories. You can build any Arduino project you like with this Grove starte...

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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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EKMC Series
PSG04177
PSG04177 - ULTRASONIC DISTANCE SENSOR

SN36938

ULTRASONIC DISTANCE SENSOR

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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HC-SR04 Series
10LLDCO
10LLDCO - Carbon Monoxide Alarm with Digital Display, 10 Year Sealed Lithium Battery Powered

SR09364

Carbon Monoxide Alarm with Digital Display, 10 Year Sealed Lithium Battery Powered

KIDDE

Sleek, lightweight CO alarm with non-replaceable, sealed-in Lithium batteries for ten years of continuous protection – meaning the user never needs to change the batteries for the full duration of the alarm’s life. • Sealed-in Lithium batteries – will last...

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PHCO520
PHCO520 - SleepSafe CO Carbon Monoxide Alarm Tester - 7 Tests, 400ml

SR10206

SleepSafe CO Carbon Monoxide Alarm Tester - 7 Tests, 400ml

SLEEPSAFE

Ensure your carbon monoxide alarms are always in working order to protect your home or workplace. SleepSafe Carbon Monoxide Alarm Tester Spray is simple and easy to use. As recommended by the fire brigade, alarm batteries and sensors should be tested regul...

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Sleepsafe - Alarm Testers
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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Arctic Hayes - PH Gas Leak Detectors
FS-2513P
FS-2513P - Film Sensor, Piezoelectric, 80Hz

SN36520

Film Sensor, Piezoelectric, 80Hz

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 - Light Sensor Board, v1.2, Grove, 3 V to 5 V, 0.5 mA to 3 mA, 540 nm

MK00575

Light Sensor Board, v1.2, Grove, 3 V to 5 V, 0.5 mA to 3 mA, 540 nm

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 - Temperature/Humidity Sensor Board, DFRobot Arduino V7.1 IO Expansion Shield Development Boards

SC15096

Temperature/Humidity Sensor Board, DFRobot Arduino V7.1 IO Expansion Shield Development Boards

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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Gravity Series
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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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-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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SparkFun Qwiic PIR Breakouts