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UPS with automatic voltage regulation?

Home battery backup systems?

UPS vs power bank differences?

How long do backups last?

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NGW-1pc Grove Base for XIAO - with embedded battery management chip

$19^.99

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Wireless Indoor Outdoor Temperature and Humidity Sensor with A-B-C Switch (06002M / 592TXR)

$37^.99

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Upgraded Smart Water Leak Detector 1s with High Alarm, 5 Pack | 1804ft Ultra-Long Range, WiFi Water Sensor with SMS/Email/APP Push, 5Yr Battery Life,IP67, Suit for Home, Basement, Kitchen

$103^.99

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Volume Discounts:$100.99 - $103.99

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AJMRTC MAX30102 Heart Rate Oximeter Sensor Module, Low Power Pulse Blood Oxygen Detection Breakout Board, I2C Interface Replacement for MAX30100 for Arduino ESP32 DIY Health Project

$16^.81

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AJMRTC HLK-LD1020 10.525GHz Microwave Radar Sensor Module, Low Power Human Micro Motion Detection Intelligent Sensing Module with Pin Header, 5Pcs Pack

$31^.23

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AJMRTC 2Pcs HLK-LD1020 10G Microwave Radar Motion Sensor Module, Low Power Intelligent Human Micro Motion Detection Radar Sensor, Non-contact Human Presence Sensing Module with Pin Header for Smart

$20^.59

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WiFi Thermometer Hygrometer: Indoor Temperature & Humidity Monitor with App | App Alerts, 3" Backlit LCD, Remote Monitoring, History & CSV Export, Smart Home Automation, USB Powered, Alexa Compatible

$40^.99

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Sensor Bar for Wii, Wireless Sensor Bar for Nintendo Wii and Wii U Console

$26^.99

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BME280 Environmental Sensor Module Temperature Humidity Barometric Pressure Sensor High Precision I2C/SPI Interface Low Power Environmental Monitoring Module For Raspberry Pi IoT DIY

$22^.89

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Smart Temperature and Humidity Sensor, Requires Hub, T310 | White, High-Accuracy Swiss-Made Sensor, Real-Time Notifications, Free Data Storage, Long-Lasting Performance

$36^.99

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Water Leak Starter Kit: Hub + 4 Leak Sensor 4 (105 dB Siren), LoRa Long-Range, App/SMS/Email Alerts, D2D Offline, 2 AAA Up to 5-Year Battery, Compatible with Alexa/IFTTT/Home Assistant

$115^.99

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Volume Discounts:$112.99 - $115.99

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AJMRTC JMT LD2410S 24G Radar Module, 24GHz Human Presence Sensor, Distance Detection Microampere Ultra Low Power Motion Sensing Switch, Human Static Presence Detector for Smart Home, Lighting Control

$16^.40

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ENS160+AHT21 Indoor Air Quality Sensor Module with I2C/SPI Digital Output eCO2 TVOC AQI Temperature Humidity Detection Gas and Environmental Monitoring Board for Smart Home HVAC IoT

$14^.89

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Motion Sensor Bar for Wii - Wired USB Sensor Bar Replacement for Nintendo Wii and Wii U Console - Game Accessories for Wii, Wii U

$26^.99

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SCD40 CO2 Gas Sensor Module (1-Pack), 3-in-1 Carbon Dioxide, Temperature & Humidity Detector Board, Photoacoustic I2C Interface Breakout for HVAC, Air Quality & IoT Nodes

$35^.99

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Sensor Bar for Wii, Wireless Sensor Bar for Nintendo Wii and Wii U Console

$26^.99

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WiFi Temperature Humidity Monitor Smart Thermometer Hygrometer with LCD Display 2.4GHz Indoor Climate Sensor App Alerts and Data Export USB Powered Compatible with Google Home

$37^.89

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NGW-1pc Wio Terminal Chassis - Battery (650mAh)

$49^.99

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WiFi Temperature Humidity Sensor Smart Hygrometer Thermometer Sensor with APP Remote Monitor and Alert High Precision Indoor Thermometer No Hub Required, Compatible with Alexa Google Assistant

$26^.99

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2 Pack Motion Sensor Bar for Wii Remote - Wired USB Sensor Bar Replacement for Nintendo Wii and Wii U Console - Game Accessories for Wii, Wii U

$26^.99

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LSA Laser Distance Meter, 165ft, 2mm Accuracy, 11 Modes, Portable

$59^.99

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Laser Measure, 265Ft Rechargeable Laser Distance Meter with Multi-Measurement Units M/in/Ft, Backlit LCD 4 Line Display, and Pythagorean, Distance, Area, Volume Modes

$53^.99

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394ft/120m/4724 inches Digital Infrared Laser Distance Meter Distance/Area/Volume/Pythagorean/Double Pythagorean Measurement with 4-Digits&4 Readings Displaying Rechargeable

$55^.99

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DR120 Dual Laser Distance Meter with Bidirectional Laser Emission, Vertical Laser Marking Line, and Electronic Level, Measures in Meters, Feet, and Inches, 393ft/120m Range Rangefinder

$67^.99

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AJMRTC MAX4080SASA High Precision Current Detection Amplifier Module, Current Monitor Sensor Board MAX4080, High Side Current Sensing Amplifier for Overcurrent Protection, Power Monitoring & Industria

$12^.66

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AJMRTC GY-291 ADXL345 Digital 3-Axis Accelerometer Gravity Tilt Sensor Module, IIC & SPI Dual Communication Interface, High Resolution Triaxial Acceleration Detector for Arduino DIY Project

$12^.65

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Finger Tip Pulse Oximeter, SpO2 Heart Rate Pulse Oximeter Monitor Blood Oxygen Saturation, LK87

$10^.60

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AJMRTC TTP223B Capacitive Touch Sensor Module, Digital TTP223 Touch Switch Module, Blue PCB Single Channel Capacitive Touch Detector for Arduino ESP32 STM32 Electronic DIY Projects

$10^.99

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AJMRTC INA226 Bi-directional Current Power Monitoring Sensor Module, IIC I2C Interface High Precision Voltage Current Power Detector for Electronic DIY Projects

$11^.31

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AJMRTC AHT20+BMP280 High Precision Digital Temperature Humidity Atmospheric Pressure Sensor Module, I2C Interface 3-in-1 Environmental Detector for Arduino ESP32 Raspberry Pi Weather Station IoT Proje

$10^.54

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AJMRTC 5Pcs Si7021 GY-21 Digital Humidity Temperature Sensor Module, HTU21 SHT21 Low Power CMOS IC Board, Replacement for SHT11 SHT15 for Environmental Monitoring & IoT Projects

$12^.70

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Replacement Wired Infrared IR Ray Motion Sensor Bar Compatible Nintendo Wii and Wii U Console (Silver/Black)

$22^.99

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Smart Temperature Humidity Monitor: WiFi Thermometer Hygrometer, App Alerts | Works with Smart Life/Tuya App, Remote Monitoring, History & Data Export, Alexa Compatible, for Greenhouse, Wine Cellar

$38^.99

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X3 Temperature & Humidity Sensor, YS8006 | Refresh Temp/Humidity in the App, Works with Alexa/IFTTT/Home Assistant, LoRa Protocol Up to 2034 Feet, Hub Required

$68^.99

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WiFi Thermometer Hygrometer IBS-TH3 Smart Temp Humidity Sensor

$55^.99

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Smart Air Quality Monitor with PM2.5 H5106, LED Display Wired | Indoor temperature humidity sensors, 2s refresh, 2-year data storage, for home & office, 2.4G Wi-Fi only

$68^.99

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