Safety and security

The learning kit for MQ series gas sensor modules includes the modules MQ-2, MQ-3, MQ-4, MQ-5, MQ-6, MQ-7, MQ-8, MQ-9 and MQ-135 and is suitable for air quality detection with Arduino ESP8266/32.--DTE

Sealey Combustion Leak Detector Fluid 250ml VS0061F

Litecraft Tyne 360 Degrees PIR Motion Sensor Surface Mount Security Fitting - White

Litecraft Microwave Sensor Low Profile Circular Security Fitting - White

Litecraft Tyne 360 Degrees PIR Motion Sensor Outdoor Recessed Mount Fitting - White

Stanley Chavon Ceiling Void Microwave Sensor Outdoor Security Fixture Litecraft

Tuya WiFi Portable Electrochemical CO Tester, Carbon Monoxide Detector with LCD Screen, Audible and Visual Alarm, Low Battery Reminder,

2mm LJ8A3-2-Z/EX DC 2-Wire Normally Open Inductive Sensor Proximity Switch

4mm Inductive Proximity Sensor Switch DC 2-Wire Normally Close LJ12A3-4-Z/DX

Mr HW06A LED Automatic Infrared Motion Sensor Control Switch 1-40W 3525mm

8mm Inductive Proximity Sensor Switch DC NPN 3-Wire Normally Open LJ18A3-8-Z/BX

LJ18A3-8-Z/EX Inductive Proximity Switch Sensor DC NO 2-Wire Normally Open 8mm

ABS Material SN04-N NPN Proximity Sensor Switch Detection Distance 4mm

Carbon monoxide detector, carbon monoxide alarm, CO detector with LED display (AA battery not included)

Carbon monoxide detector, intelligent carbon monoxide detector with LCD display, complies with standard EN 50291, 1 piece--DTEKGAZ

PIR Motion Sensor Smart Detection 120 Degree Sensing Angles Mini Infrared Sensor Detector for LED Lights DC5‑24V

PIR Motion Detector Switch 120 Degree Angle Mini Infrared Auto Switch Detector for LED Strip Security System DC 6‑24V

Litecraft Luton 180° PIR Sensor Infrared Batten Mount Outdoor Fitting - White

[NEVER USED] Household LCD Digital Carbon Monoxide Detector CO Alarm CO Sensor Monitor

Door and Window Alarm, Anti-Theft Alarm Wireless Intruder Alarm for Door Handle, Window, Home Security Against Burglary, 120dB

PIR Motion Sensing Switch Mini Infrared Human Body Sensing Switch for LED Light DC 5‑24V

Infrared Human Body Induction Switch Mini Motion Sensor Detector Controller AC80-250V

Infrared PIR Motion Switch Split Design 120 Degree Sensing Cabinet Light Sensing Switch for Home DC6‑24V

Intelligent Carbon Monoxide Detector - LCD Screen, Test Button and LED Indicator - Battery Powered - For Home and Office

Carbon Monoxide Detector with Replaceable Batteries - CO Alarm with Digital Display - Reliable Indoor Monitoring

vhbw 5x Battery Replacement for Verisure CR-2/3AZ for Alarm Units, Home Security (1350 mAh, 3 V, Li-MnO2)

vhbw 5x Battery compatible with Verisure Roykvarsler, siren, Voice, Voiceq Alarm Units, Home Security (1350 mAh, 3 V, Li-MnO2)

vhbw 5x Battery compatible with Verisure Camera Detector, Nattsikringspanel, Night Control Alarm Units, Home Security (1350 mAh, 3 V, Li-MnO2)

vhbw 5x Battery compatible with ENiQ Guardian S Alarm Units, Home Security (1350 mAh, 3 V, Li-MnO2)

Alarme sonore solaire détecteur de mouvement alarme d'avertissement extérieur 120db son de sécurité flash éclairage étanche à la pluie mode jour et nuit pour maison villa cour ferme salle de stockage

[NEVER USED] Carbon Monoxide Detector, High Stability and Sensitivity, 10104cm, White ABS

3-in-1 portable carbon monoxide detector, mini air quality monitor (0-1000 PPM), with lanyard, alarm, temperature and humidity sensor, built-in 800mAh battery, for basements, travel, etc.

Natural gas and soporific detector

vhbw 2x Battery compatible with Visonic PowerMaxComplete, AmberLink, Powermax Pro, Amber Select Alarm Units, Home Security (2000 mAh, 9.6 V, NiMH)

vhbw 2x Battery Replacement for Visonic 100729, 103-300672, GP130AAH6BMX, 0-9912-G for Alarm Units, Home Security (2000 mAh, 9.6 V, NiMH)

vhbw 2x Battery Replacement for Visonic GP180AAH8BMX, GP220AAH8BMX for Alarm Units, Home Security (2000 mAh, 9.6 V, NiMH)

vhbw Battery Replacement for Ikusi 2305271, BT24IK, BT20K for Industrial Radio Remote Control (2000mAh, 4.8 V, NiMH) - Black

[NEVER USED] Carbon monoxide detector with LED display/electronic sensor, carbon monoxide alarm detector, 20000 PPM

1 USB Rechargeable Personal Alarm, 130dB Self Defense Siren with Emergency LED Flashlight, IP44 Waterproof, Black

1 Personal Alarm, Rechargeable Siren, 130dB Self Defense Siren with Emergency LED Flashlight, IP44 Waterproof, 2 Alarm Modes, Pink

1 Personal Alarm, Rechargeable Siren, 130dB Self Defense Siren with Emergency LED Flashlight, IP44 Waterproof, 2 Alarm Modes, Blue

[NEVER USED] WiFi gas alarm, plug-in combustible gas detector, compatible with the Tuya app, detects flammable gases such as methane and butane for home or camper van.

[NEVER USED] Carbon monoxide detector, portable carbon monoxide detector with LCD digital display

[NEVER USED] Portable CO tester with electrochemical sensor, 1.1-inch LCD screen, carbon monoxide detector with audible and visual alarm, low battery reminder,

Ptorcktorge orf 2 withtrorgivtheres remortors forr Dororrs orf gtorrtorje Norvorferm Norvortrorn 502 MAX43-2, 522, MNHS433-02, MCHS43-2, Cormptortibgivthere with torbridorrthere orf Dororrs orf gtorrt

Gas detectors, gas leak detectors with audible and visual alarms to detect flammable gases such as methane and propane.

Carbon Dioxide Alarm Detector, Indoor Temperature Monitor - Temperature Humidity Monitor - High Precision Sensor Alarm Function Room Temperature Humidity

[NEVER USED] Remote control - Came TOP432NA - Fixed code frequency 433.92 MHz

[NEVER USED] Tuya Portable WiFi CO Detector, Multifunctional Carbon Monoxide Tester, Electrochemical CO Concentration Meter, Home Air Quality Tester,

Part number 8200442724 is suitable for Reynolds alarm switches, emergency control switches and automotive parts 252904889R.--BIEMMEDUE

[NEVER USED] BSIDE G1 Combustible Gas Detector, Natural Gas, Methane, Propane, and Gasoline Leak Tester, with Ambient Temperature Measurement

Carbon Monoxide Detector Carbon Monoxide Alarm - 85 DB Alarm

Motion Detector - Motion Detectors, Intelligent Infrared Human Body Sensor Switch

vhbw Battery compatible with Daitem D22 SH402AX, D22 SH422ZX, D22 SH421AX, D22 SH422AX Alarm Units, Home Security (14500 mAh, 3.6 V, Li-MnO2)

vhbw Battery compatible with Daitem D22 SH320AF, D22 SH340AD, D21 337-21D, D22 SH320AD Alarm Units, Home Security (14500 mAh, 3.6 V, Li-MnO2)

vhbw Battery compatible with Daitem SP 421-21X, SP 422-21X, SP 371-21F, SP 401-21X, SP 371-21D Alarm Units, Home Security (14500 mAh, 3.6 V, Li-MnO2)