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Alarms


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

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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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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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SparkFun Qwiic PIR Sensors
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-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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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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SparkFun Qwiic PIR Sensors
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-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
LM75AD,118
LM75AD,118 - Temperature Sensor IC, Digital, ± 2°C, -55 °C, 125 °C, SOIC, 8 Pins

SC19243

Temperature Sensor IC, Digital, ± 2°C, -55 °C, 125 °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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M152
M152 - MODULE, RAIN SENSOR, 12VDC

HK01173

MODULE, RAIN SENSOR, 12VDC

KEMO ELECTRONIC

A rain sensor module that switches on a relay when it gets wet. Sun blinds may be retracted with that and skylights may be closed or a simple rain alarm can go off. The automatically heated surface of the sensor prevents any freezing or wetting of the sens...

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101020063
101020063 - Grove Loudness Sensor

MK00314

Grove Loudness Sensor

SEEED STUDIO

Grove - sound sensor/ noise detector for Arduino is designed to detect the loudness of environmental sound. Based on amplifier LM2904 and a built-in microphone, it amplifies and filters the high-frequency signal that received from the microphone, and outpu...

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101020031
101020031 - Grove Piezo Vibration Sensor

MK00357

Grove Piezo Vibration Sensor

SEEED STUDIO

Grove - Piezo Vibration Sensor is suitable for measurements of flexibility, vibration, impact and touch. The module is based on PZT film sensor LDT0-028. When the sensor moves back and forth, a certain voltage will be created by the voltage comparator insi...

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101020019
101020019 - Grove Temperature & Humidity Sensor Pro

MK00343

Grove Temperature & Humidity Sensor Pro

SEEED STUDIO

Grove - temperature & humidity sensor pro (DHT22/AM2302) is a high accuracy temperature and humidity sensor based on the DHT22 module (also known as AM2302 or RHT03). High-cost performance and high precision make it ideal for temperature and humidity monit...

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101020078
101020078 - Grove Air Quality Sensor

MK00300

Grove Air Quality Sensor

SEEED STUDIO

Grove - air quality sensor v1.3 - Arduino compatible is designed for indoor air quality testing. It can respond to carbon monoxide, alcohol, acetone, thinner, formaldehyde, and other slightly toxic gases. Compatible with 5V and 3.3V power supply, it can wo...

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101020023
101020023 - Grove Module Sound Sensor

MK00320

Grove Module Sound Sensor

SEEED STUDIO

Grove - sound sensor based on LM358 amplifier - Arduino Compatible is a simple microphone compatible with many microcontrollers and SBCs like Arduino and Raspberry Pi. It can be used to detect whether there's sound (like the sound of clapping, noise, etc) ...

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SEN0205
SEN0205 - Add-On Board, Liquid/Water Level Sensor, Arduino/Raspberry Pi/Intel Edison/Joule/Curie Boards

SC15121

Add-On Board, Liquid/Water Level Sensor, Arduino/Raspberry Pi/Intel Edison/Joule/Curie Boards

DFROBOT

SEN0205 is a gravity: photoelectric high accuracy liquid level sensor for Arduino. The Arduino liquid sensor is equipped with an interface adapter for compatibility with the DFRobot "Gravity" interface. To ease the difficulty of using this Arduino liquid s...

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Gravity Series
SEN-12785
SEN-12785 - TOF RANGE FINDER SENSOR BOARD, VL6180

MK00783

TOF RANGE FINDER SENSOR BOARD, VL6180

SPARKFUN ELECTRONICS

The VL6180 'Time of Flight' range finder is actually a highly accurate 3-in-1 sensor package; it combines an IR emitter, a range sensor and an ambient light sensor with an I2C interface - complete with a compact form factor that includes integrated hole pa...

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WPSE309
WPSE309 - SOUND SENSOR MODULE FOR ARDUINO

SC17468

SOUND SENSOR MODULE FOR ARDUINO

WHADDA

High sensitivity sound detection module with 2 outputs: the analogue output creates a real-time output voltage signal of the microprohone and the digital output depends on the sound intensity & threshold that has been set. • High sensitivity sound detectio...

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PSG04176
PSG04176 - 3V to 5V Ultrasonic Distance Sensor, Rear Header HC-SR04

SN36937

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

MULTICOMP PRO

This new version of the ubiquitous HC-SR04+ has been engineered to work down to 3V making it absolutely ideal to connect directly to MicroBit or Raspberry Pi GPIO pins using the 3.3V power. Works identically to the standard product although you will notice...

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HC-SR04 Series
PELL0053
PELL0053 - Sensor, Passive Infrared, 6 m, 360 °

LA08665

Sensor, Passive Infrared, 6 m, 360 °

PRO ELEC

Compact, mini PIR detector supplied with DIP switch. • Supplied with DIP switch • Detection distance: 3m/6m (selectable) • Detection angle: 120°/360° • Time delay: 5s, 30s, 1min./3min./5min./8min. (selectable) • Ambient light: 10 Lux/2,000 Lux (selectable)...

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56107
56107 - Soil Moisture Sensor, 3V Supply, BBC micro:bit

ED00544

Soil Moisture Sensor, 3V Supply, BBC micro:bit

KITRONIK

Mini' prong soil moisture sensor for BBC micro:bit. The Mini Prong soil sensor is a short version of the original Prong sensor that has been specially adapted for use with the Kitronik Greenhouse Kit for BBC micro:bit. This is a sensor board that can be co...

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XF-936-FAR
XF-936-FAR - PT100 Platinum Sensing Resistance, Thin Film, -50°C to 250°C, Class A, 1 kohm, 300mm/26awg

SN36897

PT100 Platinum Sensing Resistance, Thin Film, -50°C to 250°C, Class A, 1 kohm, 300mm/26awg

LABFACILITY

The XF-936-FAR from Labfacility is a PT100 thin film resistor with 300mm 26awg wire lead. • Thin film construction Class A • Fast response time • 4 Wire configuration • Suitable for air, surface & immersion applications • Vibration resistant • Temperature ...

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XF-932-FAR
XF-932-FAR - PT100 Platinum Sensing Resistance, Thin Film, -50°C to 250°C, Class B, 1 kohm, 500mm/24awg

SN36893

PT100 Platinum Sensing Resistance, Thin Film, -50°C to 250°C, Class B, 1 kohm, 500mm/24awg

LABFACILITY

The XF-932-FAR from Labfacility is a PT100 thin film resistor with 300mm 24awg wire lead. • Thin film construction Class B • Fast response time • 2 Wire configuration • Suitable for air, surface & immersion applications • Vibration resistant • Temperature ...

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MAX17262REWL+T
MAX17262REWL+T - 5.2uA Single Cell Fuel Gauge with ModelGauge m5 EZ and Internal Current Sensing, 2.3V to 4.9V, I2C, WLP, Li-ion

SC18676

5.2uA Single Cell Fuel Gauge with ModelGauge m5 EZ and Internal Current Sensing, 2.3V to 4.9V, I2C, WLP, Li-ion

ANALOG DEVICES

MAX17262REWL+T is a MAX17262 ultra-low power fuel-gauge IC which implements the ModelGauge™ m5 algorithm. The IC monitors a single-cell battery pack and supports internal current sensing. The IC provides best performance for batteries with 30mAhr to 6Ahr c...

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AMC1200BDWV
AMC1200BDWV - Input Basic Isolated Amplifier for Current Sensing, 200uV, 4.25kV, 2.7V to 5.5V, SOIC, 8 Pins

SC17278

Input Basic Isolated Amplifier for Current Sensing, 200uV, 4.25kV, 2.7V to 5.5V, SOIC, 8 Pins

TEXAS INSTRUMENTS

The AMC1200BDWV is a precision isolation Amplifier with an output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. This barrier has been certified to provide galvanic isolation of up ...

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PDRS1500N
PDRS1500N - Sensor, Passive Infrared, 10 m, 360 °, Timeguard PIR Detectors

SR09925

Sensor, Passive Infrared, 10 m, 360 °, Timeguard PIR Detectors

TIMEGUARD

• Switches lights on when presence and motion is detected in combination with light levels (Lux adjustment) pre-set by user • Up to 2300W loading for incandescent/halogen, 1500W fluorescent, 420W LED or 250W fan • Enhanced 360° detection zone for optimum ...

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Timeguard PIR Detectors