Reviews Low Concentration Battery

ACEIRMC 5pcs MQ-3 MQ3 Alcohol Sensor Module Breath Gas Detector Ethanol Detection Module for Arduino Raspberry Pi ESP8266 MQ3 5V DC (MQ-3)

  • Sensitive material MQ-3 gas sensor is used in clean air low conductivity tin oxide (SnO2)..
  • When there is alcohol vapor in the environment sensor, conductivity sensor with increasing gas concentration of alcohol in the air increases.
  • Use simple circuit can convert the change in conductivity of the gas concentration corresponding to the output signal..
  • High MQ-3 gas sensor sensitivity to alcohol, can resist the interference of gasoline, smoke, water vapor..
  • The MQ-3 sensor can detect a variety of alcohol concentration in the atmosphere, is a low-cost sensor suitable for a variety of applications.
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X-Sense 10-Year Battery Smoke and Carbon Monoxide Alarm with Display, Dual Sensor Smoke CO Alarm, Auto-Check, SC01, Pack of 1

  • 10-Year Battery Smoke and CO Detector: Provides 10 years of continuous power with built-in lithium batteries.
  • Combination Alarm with CO Readings: The informative LCD display clearly indicates real-time carbon monoxide (CO) levels in the surrounding air, as well as its battery level and working status.
  • 2-in-1 Protection: The smoke and carbon monoxide detector is equipped with both photoelectric smoke sensor and electrochemical CO sensor that both detect smoke and dangerous CO levels.
  • Practical LCD Display: Clearly indicates real-time carbon monoxide (CO) concentration in the surrounding air, as well as the remaining battery life and working status of the alarm.
  • if a CO concentration of 30-999 ppm exists for a certain time period, the screen will be backlit blue, and the LED indicator will flash red 4 times every 5.8 seconds.
  • Simple Installation: Requires no rewiring.
  • easy to mount this fire and CO alarm on any wall or ceiling with the included mounting bracket, screws and anchor plugs.
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Taidacent Low Concentration Qualitative Detection MQ131 Ozone Sensor Module O3 Air Quality Monitoring

  • Mainly used for qualitative detection, suitable for home and environmental gas detection equipment, ozone gas detection, gas sensor test concentration....
  • The module has level signal output and alarm signal indicator.
  • The module is with analog signal output, voltage range: 0-5V.
  • The level signal output is effective at low level, which can drive PNP transistors and can also be connected to the IO port of the microcontroller.
  • The analog output voltage increases with the increase of ozone concentration, the higher the concentration, the higher the voltage.
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EBL AAAA Batteries, 1.2V 400mAh Ni-MH AAAA Rechargeable Batteries for Surface Pen, 4-Count

  • Reliable Quality - No longer to worry about the endurance of the batteries, EBL AAAA Batteries will provide ultra strong power for your devices to work well and operate longer..
  • Supercell Lattice - EBL batteries made in supercell lattice technology, make it more inner space to contain such high volume power juice, provide constant voltage and best performance in heavy load discharge..
  • ProCyco Technology - Extend lifespan 1200 Tech, up to 500 times deep charging & discharging cycles (others normal is 400 times) , high quality ensured..
  • Safety Assurance - Ni-MH eco-friendly cell, doesn’t contain Hg/Cd/Pb, makes no pollution to the environment, and using DBCK steel shell which can protect the battery against explosion due to overpressure..
  • Low Self-discharge - Embedded seal structure expand the space of crystal lattice, make more room for hydrogen, so EBL batteries will holds 75% power after 3 years benefit from its concentration to low self-discharge project..
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Seesii Gas Leak Detector,Portable Natural Gas Sniffer Alarm 0-50000PPM 100%LEL High Accuracy with Colorful LCD Display for Home, Battery Operated,Air Analyzer Locates Combustible Gas

  • ...ne, ethylene oxide, hexane, N-butane, ethylene and more. Can be used by homeowners, professionals, or real estate agents. Reduce the risk of gas explosion and protect your family's life and property safety..
  • 【HIGH SENSITIVE AND QUICK RESPONSE】1-50000PMM or 0.1%-100%LEL alarm range. Large colorful LCD display gas concentration and device status in real time, so that you feel much safer when know the exact gas concentration in the air of your home at all times. ,Quick response within 2 seconds. Easy to set up and operate, works perfect..
  • 【AUDIBLE & VISUAL ALARM】Alarms continuously with tone and LCD display bar change and show actual concentration when detecting gas leak. has a backlight LCD screen, visually display the gas level , easy to read in dark. Use batteries to operate and has a low-battery indicator( 3pcs AAA batteries not included). Power-save modes,auto power off after about 10 minutes if there are no operation and measurement signal..
  • 【Flexible Probe & High-precision Sensor】11inch Split universal flexible probe, flexible and easy to deal with various measurement environments. One hand operate, easy to carry. Look for a detector that can sense even the smallest amounts of gas or else you could be unknowingly exposed to a toxic subst....
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Ximimark 3Pcs MQ135 MQ-135 Air Quality Sensor Hazardous Gas Detection Module for Arduino

  • High quality dual panel design with power indicator and TTL signal output indication..
  • TTL output valid signal is low level, (output low signal light, which can be accessed microcontroller IO port)..
  • Analog output with increasing concentration, the higher the concentration, the higher the voltage..
  • A hazardous gas detection apparatus for the family, the environment. Suitable for ammonia, aromatic compounds, sulfur, benzene vapor, and other gases....
  • Long service life, stable and reliable. Has fast response and recovery features..
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Dreametech T30 Cordless Vacuum Cleaner, 90mins Long Runtime Stick Vacuum, 190 AW Robust Suction Handheld Vacuum, Cordless Vacuum with HEPA Filters for Hard Floor Stairs

  • 27KPA POWERFUL SUCTION: Dreametech T30 cordless vacuum cleaner can generate up to 190AW suction power, which satisfies most cleaning demands. It can quickly pick up dust, dirt, and pet hairs..
  • MULTIPLE INTELLIGENT SENSING TECHNOLOGY: Dust sensing technology can show different dust concentration.
  • Brush is equipped with recognition technology to automatically adjust suction between hard floors and carpets.
  • therefore it can reasonably use battery electric quantity of vacuum cleaner..
  • DETACHABLE LARGE CAPACITY BATTERY: The Detachable soft-packing lithium battery - 2,900mAh large capacity battery, runtime up to 90 minutes, enough power to clean longer..
  • SMART SCREEN: it can show clearly the cleaning information, historical records, fault guidance information, Modes, and remaining run-time are updated in real-time, it will show different 3 colors according to Dust concentration.
  • it makes your cleaning more intelligent..
  • SUPER CONVENIENT USER-FRIENDLY DESIGNS: The self-luminous LED flat nozzle.
  • V-shape roller brush + comb structure can effectively prevent hairs from wrapping around the roller.
  • flexible elbow joint, easier to clean cabinet top/furniture bottom. Note: we offer a 1-year warranty for DreameTech T30..
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Time Timer 3 inch Visual Timer — 60 Minute Kids Desk Countdown Clock with Dry Erase Activity Card and Desktop App Access — for Kids Classroom Homeschool Study Tool Task Reminder Home and Kitchen

  • TIME MANAGEMENT — The 60-minute learning clock helps to stay on task, and assist with organization and concentration during study time. The clear closeable lens snaps over and flips open to serve as a school desk timer.
  • ENHANCED RED DISK — Enhanced 2 inch red disk visibility to help ease transitions between activities and encourages independence and productivity for all abilities, including those with autism, ADHD, or other special needs.
  • VISUAL ACTIVITY CARD — The timer for kids provides no loud ticking for better concentration and a 3 x 3 inch dry-erase board to write down tasks and placed on top of the slot as a reminder.
  • OPTIONAL AUDIBLE ALERT — The homework timer provides an optional alarm feature for sound-sensitive environments.
  • ideal for activities such as doing homework, reading, studying, cooking and working out.
  • IMPROVED BATTERY COMPARTMENT — The 3.15 x 1.3 x 3 inches visual timer has an attached battery door an shallow battery tray for easier battery insertion and stronger connection.
  • Plush carry bag included to enhance portability.
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Elitech WJL-6000S Freon Leak Detector Halogen Refrigerant Tester AC Leak Sniffer R22 R410A R134A R1234YF

  • Upgraded 5 LED indicators reflect gas concentration..
  • Freon leak detector triggers on R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs,HCFCs and blends..
  • Audible alarm and low battery indicator..
  • A flexible probe around 7.9-inch allows detections in difficult and hard-to-reach areas. 24/7 US Technician Support via Email and Phone..
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