Reviews Ultra low Light Level Detector

Carbon Monoxide Detector,CO Monitor Alarm Detector Battery Powered,CO Detector with LCD Digital Display and Sound Warning for Home,Office,School,Basement,Garage,Complies with UL 2034 Standards

  • High Sensitivity and Fast Responsive—Carbon Monoxide Detector features an advanced electrochemical Sensor that accurately detects carbon monoxide levels and quickly response to save your life in the first time when fire hazard occurs,To ensure complete protection make sure to place one on each level of your home and in each bedroom..
  • Safe And Visible LCD Digital Display—With 3 digits LCD displayer is optional, 'Err' on the LCD to indicate the unit is malfunctioning. 'Lb' on the LCS to indicate it low battery and need to replacement. '999ppm' on the LCD to indicate CO level over 999ppm And Loud 85 decibel alarm with LED Flash While in the Alarm Mode for the life-saving safety, protect the family from carbon monoxide..
  • Alarm Standard & Alarm Warning—When the alarm detects that CO concentration exceeds 50ppm , alarm within 60-90 minutes.
  • 300ppm, alarm within 3 minutes. When a dangerous level of carbon monoxide is detected the red LED will flashes and a loud alarm pattern will sound--Loud 85 decibel alarm with LED Flash..
  • Easy TO Install & Widely Use—Simple to use,with a single test/reset button,Comes with mounting accessories, just drill holes in the right places , and done.
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Freon Leak Detector Portable Refrigerant Leak Detector HVAC Halogen Leak Detector Compatible for CFCs HCFCs HFC R22, R134A Refrigerant, R410A Refrigerant, High Precision Indicator，HVAC Tools

  • 【Gas Leak Detector To Detect All Gases 】 Test all halogen gases, including chlorine/fluorine/bromine. Such as cfc R12, R11, R500, R503.
  • hfc R134a, R404a, R125, etc. Other compounds can also be detected, such as AZ-50, HP62, MP39..
  • 【Freon Leak Detector With Adjustable Sensitivity】Sensitivity can be adjusted at any time (1-7 levels adjustable), and the instrument will automatically adjust to the best detection state (maximum sensitivity is 0.21oz/yr), which is suitable for automatic calibration in harsh environments..
  • 【High-Precision Refrigerant Leak Detector】 Built-in high-precision voltage regulator integrated circuit and ultra-low power consumption circuit design, the operation is more stable, and the battery is more durable..
  • 【Halogen Leak Detector Has Reset Function & Auto Follow Circuit Function】 ①After the instrument is turned on, it can automatically adjust the circuit within 6 seconds to ignore the existing refrigerant concentration level of the probe and enter the detection state. ②In the detection state, the automatic circuit will follow the change of the halogen gas concentration in the environment to prevent false alarms..
  • 【R134A Refrigerant Detector With Visual Indicator】 Audible and visual....
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Dr.meter Professional LED Light Meter, Digital Illuminance Meter with 0-200,000 Measuring Ranges and 270 Degree Rotatable Detector

  • ★【Professional LED Light Meter】: Whether you're a set designer, or looking to set the mood, proper lighting is a must. The Dr.meter Digital LED Light Meter measures the brightness (up to 200,000 lux) of fluorescent, metal halide, incandescent, and high-pressure sodium lights, guaranteeing the perfect luminosity every time..
  • ★【Ultra Fast, Ultra Precise】: A split second is all it takes for an accurate reading. An advanced built-in calibration sensor measures the light levels at a super fast, twice per second speed..
  • ★【Easy and Intuitive】: Using this digital LED light meter couldn't be easier. Just turn it on, point it at the light source, and check out the reading on the display screen. There are 4 adjustable measuring ranges (200lux, 2,000lux, 20,000lux, 200,000lux). Preprogrammed settings like auto power off, data hold, unit adjustment, and more do the hard work for you..
  • ★【270 Degree Rotatable Detector】: Keep an eye on the light level anywhere in the room. The optical detector rotates a full 270 degree for muti-directional detection..
  • ★【Tripod Mountable】: Have your hands full? Don't sweat it. Thanks to the screw base design, this LED light meter can be placed on a tripod for hands-free use..
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Jahy2Tech EMF Meters Magnetic Field Detector 5 Scales Ghost Hunting Paranormal Equipment Tester Counter Portable

  • [Sensitive Detection] – EMF detector can measure electromagnetic waves sensitively and accurately, and measure electromagnetic waves in household appliances, computer equipment, communication equipment, etc. in daily life, so as to identify equipment generating high-level radiation, so as to stay away from those high-level radiation equipment wisely and protect your safety.
  • [Main Purpose] – to measure various electromagnetic fields from 50 Hz to 20000 Hz. ghost hunting equipment can register mobile phones within 2 feet. Measure EMF levels to prevent potentially harmful long-term overexposure to EMF. Radiation range of 0-1.5mG is normal, 1.5-2.5mG is low risk, 2.5-10mG is medium risk, 10-20mG is high risk, and 20+mG is ultra-high risk.
  • [Easy to Read] – the color led light makes the reading obvious in the day or night.
  • The ghost detector has five lights, which can easily identify the radiation range. In addition, it is easy to carry around, because it can be put in your pocket or purse.
  • [Single Hand Operation] – hand-held, easy to carry, easy to use, solid and reliable. A small one is convenient to get the hand to detect the radiation range. Put the thumb of the hand like the picture, and then press, the instrument can be operated.
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Water Sensor SECRUI WD121 24 Hour Alarm Reminder Water Leak Detector 120dB Water Detector Alarm for Home Basement and Kitchen

  • Dripping and Leaking Alarm: Besides 2 groups of backwater detector probes, each detector also has 1 group of front probes for pipe dripping.(Note:....
  • Wireless and Easy to Use: No wire or setup required, the mini size allows you to put it on any place where the water leak may be happening. With kit....
  • Adjustable Alarm Audio: Each water leak detector features 0-100 dB adjustable alarm audio. Loud enough to be heard even if a leak happens in the....
  • Low Battery Alert: The water sensor alarm will beep and flash a red light when a battery is low, or press the button on it to test the battery level..
  • IP66 Waterproof: The completely sealed waterproof design allows for extended use in high moisture areas..
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Govee Water Leak Detectors 5 Pack 100dB Adjustable Audio Alarm Sensor Sensitive Leak and Drip Alert for Kitchen Bathroom Basement Battery Included

  • Dripping and Leaking Alarm: Besides 2 groups of backwater detector sensor probes, each detector also has 1 group of front probes for pipe dripping.(Note: Only paired with the gateway of the water detector, cannot paired with the gateway of the hygrometer.).
  • Wireless and Easy to Use: No wire or setup required, the mini size allows you to put it on any place where the water leak may be happening. With kit "B07QP153GT", you are able to monitor leaks on your phone even you're not at home."B07QP153GT" not Included in Package..
  • Adjustable Alarm Audio: Each water leak detector features an 0-100 dB adjustable alarm audio. Loud enough to be heard even if leak happens in basement, press the button to mute the sound when you find the leaking place..
  • Low Battery Alert: The water sensor alarm will beep and flash a red light when a battery is low, or press the button on it to test the battery level..
  • IP66 Waterproof: The completely sealed waterproof design allows for extended use in high moisture areas..
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Kidde Smoke & Carbon Monoxide Detector, Hardwired Interconnect, Combination Smoke & CO Alarm with Battery Backup, Voice Alerts, Contractor 6 Pack

  • This First Alert combo pack will help keep you and your family safe.
  • it includes one First Alert carbon monoxide alarm and one First Alert smoke alarm, and both are battery-operated for continuous monitoring, even during a power outage.
  • Carbon monoxide detector features electrochemical sensing technology to detect leaks from multiple sources.
  • smoke alarm uses an ultra-reliable ionization sensor to provide the earliest possible warning of a fast-flaming fire.
  • Both the smoke alarm and carbon monoxide detector feature a loud 85-decibel alarm, a single test/silence button, and an end-of-life signal so you know when to replace the unit.
  • each unit operates with one 9-volt battery, and is UL listed.
  • Smoke alarm features a low battery alert, a missing battery guard, a side battery drawer that slides open for easy battery replacement, a blinking power indicator, and an optional pin to lock the battery and unit in place for tamper resistance, plus offers a 10 year limited.
  • carbon monoxide detector offers a 5 year limited.
  • To ensure complete protection make sure to place one carbon monoxide detector on each level of your home and in each bedroom.
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Hidden Camera Detectors,Hidden Devices Detector,Anti Spy Detector,Bug Detector, Listening Device Detector, RF Signal Detector,GPS Tracker Detector

  • 【Upgraded Version of The Bug Detectors Anti-spy Detector】BTFDREEM M8000 detector using advanced chip technology in Germany, professional radio wave detection device, detection frequency range of 1MHz-12GHz.
  • less than 0.03mw detection make it for high sensitivity, wireless camera detection range up to 36 ㎡.
  • built-in 3.7v & 1500mAH battery, aluminum alloy body with strong anti-interference ability, equipped with searchlight magnetic induction Flexible antenna..
  • 【4 Detection Modes】:This Anti Spy Detector has 4 detection modes: RF signal detection, magnetic field detector, automatic detection of ultra-small hidden camera detector and infrared detection.Three danger levels are displayed above and when a hidden device is detected the signal light will point to a higher danger level..
  • 【Long Standby and Ease of Use】Built-in 1500 mAh battery, support continuous work for about 20-45 hours, standby time of about 45 days, do not always worry about the power problem.
  • mini-portable design, you can put the wireless audio bug in a backpack or pocket, take it anywhere you want to go..
  • 【Security Protection】 This RF detector can be used in homes, offices, hotels, motels, cars, bathrooms, locker rooms, business negotiations, confidential meetings, go....
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Metal Detector for Adults Kids, ginour Gold Detector Waterproof 10'' Coil High Accuracy Metal Detector, 3 Modes, LCD Display, with Shovel, Earphone, for Beach Detecting, Treasure Hunting

  • 【10in Waterproof Search Coil】Ginour metal detector has 10inches large search coil, which means higher sensitivity to make you detecting more efficient and time-saving. It can detect metal up to 8 inches deep from the ground. Waterproof search coil allows you to explore treasures in places such as beaches, streams, puddles, etc. Note: LCD screen is not waterproof.
  • 【3 Modes for Operation】The detector de metales oro y plata can detect various metals. DISC mode and NOCH mode can let you ignore the metal you don't need. The SENS mode can adjust 8 levels of sensitivity, allowing you to detect metal 8 inches below the surface and focus on the target. Press and hold the pinpoint(PP) button and you can accurately locate by sound. Trust you will find lost rings, earrings, coins, or get extra surprises.
  • 【Adjustable Backlit LCD Screen】 The metal detector has a large adjustable backlit LCD screen, which can be read clearly even in low light conditions. The detection mode, sensitivity, battery status and power level are clearly displayed on the screen. When the low battery indicator lights up, please replace new battery. The handle of the metal detector is made of soft foam, which is ergonomic and can provide a comfortable feeling for long-term use.
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Halogen Leak Detector HLD-100+ Refrigerant Gas Leak Detector R134a R12 R22 R600a …

  • UPDATED：The sensitive elements adopt the advanced and reliable corona refrigerant sensor which has great sensitivity and excellent repeatability.(with 2 x Sensing Tip, 2 x C batteries).
  • LOW POWER CONSUMPTION：eight-bit microprocessor controller Dual-color LED indicator light with progressive and real time display Sensitivity adjustable seven level alarming indicated by LED display Modular sensor, convenient for maintenance Seven levels audible and visual alarm Auto reset testing when the detector is turned on Battery level indication..
  • HIGH ACCURACY：Response in 3 seconds, Warm up in 6 seconds. Max sensitivity for halogenated refrigerants: 0.11oz/yr. One extra spare sensing tip is included..
  • PORTABLE：Dual-color LED indicator light, with visual and clear display, smart and portable design is convenient for your mobile operation. When there is excessive refrigerant in the leak gas, this unit will automatically audio alarmed to effectively test the refrigerant leak.Adopt advanced..
  • BUY WITH CONFIDENCE：We've got your back with a 100% satisfaction guarantee. Reach out to us in case of any issues with your gas leak detector and we'll do all we can to make it right..
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MySpool Water Level Alert with Text Message and Email Notifications, Battery Powered with a Float Sensor

  • Email and text message notification when water level change is detected. All services are free..
  • Battery powered wireless water level detector using your WiFi, no app to install and no hub is required. Perfect as a standalone high or low water alarm..
  • Waterproof float sensor with a 3 ft wire connected to a rugged enclosure protecting smart electronics. This float sensor can be used to detect high or low water levels, the default setting detects high water levels. Flip the float ring and use this device to detect low water levels in aquariums, ponds, and storage tanks..
  • Alert is sent if the float rises to signal high water level. Flip the float ring to send alert when water level falls. 3 AAA batteries, included, last for years with limited activity..
  • Rugged enclosure supports up to 250 lbs, designed to operate in dusty and moldy environments. Avoid costly repairs by keeping MySpool Water Detector anywhere that has the potential for flooding or developing a leak..
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Pinless Wood Moisture Meter - 4 IN 1 Upgraded Inductive Pinless Moisture Meter for Wood, Pinless-Type Digital Moisture Detector Non-Destructive Moisture Detection in Drywall, Firewood, and Masonry

  • ...n chip to make the measure results more accurate, and its EMF(electromagnetic field) and HF(electromagnetic waves) designs without making hole in furniture or other valuable objects, which spares the hassle of making holes and having to deal with the cleanup.First step in early leak prevention to have moisture detector, as you can know the moisture level more easier in any objects no destroying.
  • DYR-WET MOISTURE CONTENT ALERTS - Still don't know the moisture level when you test the wood or building material? Choose this mold detector, its DYR-WET MOISTURE CONTENT ALERTS would tell you whether moisture of the material is high or low directly, at the same time, present the measure data in the LCD screen. It is ideal for woodworking, construction, agricultural repair and floor laying. And know the moisture content of wood products such as hardwood floors, cabinets, furniture, wood,etc.
  • EASY TO READ AND USE - This wood moisture meter for woodworking with ultra large LCD screen, which reflects the moisture level of measure quickly, tell you the accurate results and ensures clear readings when you measure the objects. And its “HOLD” function more convenient for you to record by freezing the measure data. In addition, it also has C/F display temperat....
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Hidden Camera Detectors,RF Signal Scanner Device Detector by NOYAFA with 12 Levels Sensitivity 4 Professional Modes, GPS Tracker Listening Device Camera Finder for Office Teavel

  • [Infrared Hidden Camera Detector] The detector uses advanced technology, applicable to all kinds of eavesdroppers, car trackers, mobile undercover software, wireless pinhole cameras, surveillance cameras, casino fraud, and cheating equipment, and other products in the market, with a wide range of application scenarios..
  • [Multiple Detection Methods & Automatic Detection function]: This hidden camera detector has 4 detection methods: Buzzer signal detection, LED signal display detection, automatic detection of the ultra-mini anti-spy camera, and GPS locator detection. When it is in an environment with eavesdroppers, pinhole cameras, casino bombing fraud, and so on, the equipment will prompt danger signals..
  • [Adjustable Sensitivity] The sensitivity can be adjusted by adjusting the signal gear to expand or shorten the detection range. And it has an LED display that can display three hazard levels. When a hidden device is detected, the signal light will point to a higher level of danger. Guard your safety at all times.
  • [Easy to Use & Mini and Portable] This hidden camera detector has a net weight of only 28 grams, which is very compact, you can take the wireless audio bug detector to wherever you want, and can work continuously for up to 25 hours. It is....
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