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Best Wireless Protractor Sensors

Protractor and Compass for Geometry – Bundle Protractor for Geometry with Compass Metal, 6 Inch Protractor for Woodworking, Protractors Classroom, 180 Degrees Math Protractor, for School and Office

  • Protractors and drawing compass bundle – bundle pack includes 1 plastic protractor and 1 drafting compass – compact with easy comfortable grip for high quality, professional use..
  • Metal protractor – large protractor measures 0 to 180 degree with inch and centimeter marks for easy measuring. 6 inch length clear protractor allows you to see words, letters, figures on pages through the protractor..
  • Protractor and compass – high quality professional metal compass, circle drawing tool creates circles up to 6 inch diameter..
  • 6 inch protractor – easy and user friendly protractor, durable and convenient with hollow design for easy grip and various measuring angles..
  • Wide application – protractors and comopass are suitable for painting, measuring, woodworking, homework, students, and classroom..
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12 Gauge Trip Wire Alarm 4 Way Trip Quad Perimeter Defense Gen 3.0 by Trip Alarm Co. for Camping and Security (Black)

  • WIDE RANGE OF APPLICATION(Driveway alert,Perimeter alarm and etc)- The infrared detection range of the solar sensors up to 190 feet,that means the infrared sensing terminals can be mounted up to 190 feet apart.
  • and will send a wireless alarm signal back to the wireless alarm receiver up to 1/4 mile away anytime someone passes between the solar sensors(Actual range will vary depending on the local terrain).
  • NO WIRING NO NEED TO REPLACe BATTERIES- The sensors are self-powered by solar recharged lithium ion batteries.
  • no need sunlight,the nature light on cloudy and rainy days also can charge the batteries normally.
  • requires no wiring(both the power cables and signal cables).
  • LOWER FALSE ALARM RATE-The use of active and multiple infrared beams reduce false alarms from small animals and small objects such as birds and falling leaves.
  • super infrared penetrating power reduce false alarms from the bad weather such as rain/fog/snow.
  • infrared analysis technology reduce false alarms from the other nature light sources interference such as sunlight.
  • DIY DESIGN,SUPER EASY TO SET UP IN MINUTES-The KIT has been programmed already before shipped.
  • no power cables because the sensor is solar powered.
  • no signal cables because the signal is wireless transmission.
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ThermoPro TP60S Digital Hygrometer Indoor Outdoor Thermometer Wireless Temperature and Humidity Gauge Monitor Room Thermometer with 200ft/60m Range Humidity Meter

  • Informational: Weather stations wireless indoor outdoor record all time/24 hours max and min temperature and humidity readings.
  • Wireless thermometer indoor outdoor with temperature trend arrows indicates whether it's getting warmer or colder near the remote temperature monitor.
  • Smart Design: Temperature and humidity monitor can display the readings from up to 3 temperature sensors to monitor different locations.
  • Wide Temp & Humid Range: Inside outside thermometer hydrometer measures indoor outdoor temperature and humidity percentages simultaneously.
  • Indoor/outdoor temperature range: -4°F to 158°F (-20°C to 70°C).
  • Hands Free Monitoring: Wireless thermometer outdoor with strong signal penetration humidity sensors to get the temperature and humidity records from 200ft/60m remote range away.
  • Widely Application: Indoor/outdoor hygrometer wireless ensures proper temperature and humidity control, which has important health benefits, thermometer digital can be placed in baby room, nursery, cellar, basement, warehouse and greenhouse.
  • Additional sensors: There are two versions: TP60 with 433MHz sensor and TP60 with 915MHz sensor. B....
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1/4Mile Solar Driveway Alarm System-Up to 50FT Wide Sensor Range 3 Adjustable Sensitivities-Fully Weatherproof Outdoor Motion Sensor&Detector DIY Security Alert System

  • WIDE RANGE OF APPLICATION(Driveway alert,Perimeter alarm and etc)- The infrared detection range of the solar sensors up to 300 feet,that means the infrared sensing terminals can be mounted up to 300 feet apart.
  • and will send a wireless alarm signal back to the wireless alarm receiver up to 1/2 mile away anytime someone passes between the solar sensors(Actual range will vary depending on the local terrain).
  • NO WIRING NO NEED TO REPLACe BATTERIES- The sensors are self-powered by solar recharged the rechargeable batteries.
  • no need sunlight,the nature light on cloudy and rainy days also can charge the batteries normally.
  • requires no wiring(both the power cables and signal cables).
  • LOWER FALSE ALARM RATE-The use of active and multiple infrared beams reduce false alarms from small animals and small objects such as birds and falling leaves.
  • super infrared penetrating power reduce false alarms from the bad weather such as rain/fog/snow.
  • infrared analysis technology reduce false alarms from the other nature light sources interference such as sunlight.
  • DIY DESIGN,SUPER EASY TO SET UP IN MINUTES-No power cables because the sensor is solar powered.
  • no signal cables because the signal is wireless transmission.
  • so the installation time can be as little as a few minute....
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HTZSAFE Solar Wireless Driveway Alarm System- 1/2 Mile Long Transmission Range- 300 Feet Wide Sensor Range- No Wiring No Need Replace Battery- Outdoor Weatherproof DIY Security Perimeter Alert System

  • WIDE RANGE OF APPLICATION(Driveway alert,Perimeter alarm and etc)- The infrared detection range of the solar sensors up to 300 feet,that means the infrared sensing terminals can be mounted up to 300 feet apart.
  • and will send a wireless alarm signal back to the wireless alarm receiver up to 1/2 mile away anytime someone passes between the solar sensors(Actual range will vary depending on the local terrain).
  • NO WIRING NO NEED TO REPLACe BATTERIES- The sensors are self-powered by solar recharged the rechargeable batteries.
  • no need sunlight,the nature light on cloudy and rainy days also can charge the batteries normally.
  • requires no wiring(both the power cables and signal cables).
  • LOWER FALSE ALARM RATE-The use of active and multiple infrared beams reduce false alarms from small animals and small objects such as birds and falling leaves.
  • super infrared penetrating power reduce false alarms from the bad weather such as rain/fog/snow.
  • infrared analysis technology reduce false alarms from the other nature light sources interference such as sunlight.
  • DIY DESIGN,SUPER EASY TO SET UP IN MINUTES-No power cables because the sensor is solar powered.
  • no signal cables because the signal is wireless transmission.
  • so the installation time can be as little as a few minute....
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24 Pack Plastic Protractor Math Protractors 180 Degrees for Angle Measurement,6 Inch Student Math Protractor, Clear

  • High Quality: Made of hard plastic, this clear protractor is thick and durable that it is not easy to snap, but very light and easy to carry..
  • Convenient Reading:The protractor is made of good quality clear plastic which allows you see the words, letters, and figures on page through the protractor..
  • Measure Range:This protractor measures 0 to 180 degrees left to right and right to left, and the minimum accuracy is 1 degree, each 10 degrees have a clear line to distinguish..
  • Extensive Use:This protractor can be applied in painting, measuring, doing math homework, technical drawing, etc. Suitable for students, teachers, office workers, engineers, etc..
  • Unique Design :With hollow center, the student protractor is easy to grip. They are convenient to fix on the paper and books to get the accurate angle and length..
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HTZSAFE Solar Wireless Driveway Alarm System- 1/4 Mile Long Transmission Range- 190 Feet Wide Sensor Range- No Wiring No Need Replace Battery- Outdoor Weatherproof DIY Security Perimeter Alert System

  • WIDE RANGE OF APPLICATION(Driveway alert,Perimeter alarm and etc)- The infrared detection range of the solar sensors up to 190 feet,that means the infrared sensing terminals can be mounted up to 190 feet apart.
  • and will send a wireless alarm signal back to the wireless alarm receiver up to 1/4 mile away anytime someone passes between the solar sensors(Actual range will vary depending on the local terrain).
  • NO WIRING NO NEED TO REPLACe BATTERIES- The sensors are self-powered by solar recharged lithium ion batteries.
  • no need sunlight,the nature light on cloudy and rainy days also can charge the batteries normally.
  • requires no wiring(both the power cables and signal cables).
  • LOWER FALSE ALARM RATE-The use of active and multiple infrared beams reduce false alarms from small animals and small objects such as birds and falling leaves.
  • super infrared penetrating power reduce false alarms from the bad weather such as rain/fog/snow.
  • infrared analysis technology reduce false alarms from the other nature light sources interference such as sunlight.
  • DIY DESIGN,SUPER EASY TO SET UP IN MINUTES-The KIT has been programmed already before shipped.
  • no power cables because the sensor is solar powered.
  • no signal cables because the signal is wireless transmission.
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CATEYE - Padrone Digital Bluetooth Cycling Computer (Padrone Digital Magnetless)

  • PADRONE DIGITAL MAGNETLESS: Included dual band ANT+/BLE Speed and Cadence sensors provide an effortless set-up experience without the need to align any magnets..
  • OVERSIZE DISPLAY: The Padrone Digital Wireless shows your cadence and ride stats on a large, 3-row screen with up to four data displays and is also triple wireless upgradable with an optional heart rate sensor so you can capture all the data you need..
  • IPX-7 WATERPROOF: SPD-30 and CDC-30 Magnetless Sensors are waterproof rated to withstand the elements so you can ride on rain or shine..
  • Meet your perfect Training partner: The Padrone Digital Wireless shows your cadence and ride stats on a large, 3-row screen with up to four data displays, and now includes our new ANT+/BLE Magnetless Speed and Cadence Sensors..
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Military Protractor for Land Navigation

  • DURABILITY - Stronger material and thicker then standard issue protractors. Does not become floppy or wear out easily..
  • MULTI SCALE - For with map scales: 1:10,000 1:25,000 1:50,000 1:100,000 1:250,000.
  • PROFESSIONAL USE - Inner protractor is marked in degrees and outer protractor is in mils.
  • MILITARY STANDARD - Equivalent to Graphic Training Aid 5-2-12 Coordinate Scale and Protractor (GTA 5-2-12), the standard issue Army protractor.
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Amcrest Home Security System, DIY Smart Home Alarm System for Home with No Monthly Fees, Remote Arm/Disarm & Phone App Alerts, 4 Pieces-Kit (PIR Motion Sensor, Door Window Sensor, Alarm Hub)

  • Wireless Security System - A smart way to protect your house with the Amcrest SmartHome Security System. This 4-piece kit includes the 1 PIR Motion Sensor, 2 Windows & Door sensors, and 1 Alarm Hub..
  • Smart Alarm System - Amcrest SmartHome Alarm Security System is an affordable solution for your home/business security. You have full control over the window/door alarms for home security through the smartphone SmartHome App and get instant notifications of alarm alerts in your house or business..
  • Customizable - You can add extra door and window sensors, PIR motion detectors to different rooms in your home/business security systems.
  • It supports the expansion of up to 32 door/window sensors and PIR Motions Sensors, which can be added to the WiFi alarm station..
  • DIY Installation - Easily set up the Amcrest SmartHome Alarm Kit Wireless Home Security System in minutes without tools. The wireless connection devices don't damage the wall. The alarm station should always connect via the USB cable to the AC adapter..
  • Simple, Reliable, Secure - You’ll receive a full 1-year US Warranty and Lifetime Support provided directly from Amcrest. Additional PIR Sensors (ASIN: B08X1KYYQ7) & Contact Sensors (ASIN: B08X4XZNW9)can be purchased separately..
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AcuRite 01096M Temperature & Humidity Station with 3 Indoor/Outdoor Sensors

  • Monitors environmental conditions in four locations inside and Outside your home (3 wireless sensors, plus built-in sensors inside the digital display).
  • Easy-to-read digital display shows temperature and humidity data from all four locations at-a-glance.
  • Multi-Room station provides humidity gauge, indoor/outdoor temperature, clock and date.
  • Offers programmable alarms, alerting you to take action if environmental conditions exceed your preferred range.
  • Includes one (1) wireless, weather-resistant outdoor sensor and two (2) indoor temperature and humidity sensors.
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AcuRite 01094M Temperature & Humidity Station with 3 Indoor/Outdoor Sensors

  • Monitors environmental conditions in four locations inside and Outside your home (3 wireless sensors, plus built-in sensors inside the digital display).
  • Easy-to-read digital display shows temperature and humidity data from all four locations at-a-glance.
  • Multi-Room station provides humidity gauge, indoor/outdoor temperature, clock and date.
  • Offers programmable alarms, alerting you to take action if environmental conditions exceed your preferred range.
  • Includes three (3) wireless, weather-resistant indoor/outdoor temperature and humidity sensors.
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eMACROS Wireless Driveway Alarm, Motion Sensor Alarm 500 FT Range Extra Loud Chimes Weatherproof Home Security Alarm System Protect Indoor/Outdoor Property-1 Receiver and 2 Sensors

  • ...The waterproof sensors in this system uses a Pyroelectric infrared (PIR) motion sensor to detect heat and movement so you can quickly be alerted to movement on your driveway, front porch, gate, shed, walkway, or even swimming pool (for when kids get too close). Great for homes, businesses and offices..
  • Long Distance Wireless and Reliable Battery Life - Trigger 50 times a day,the sensor's battery can be used for a year. Communication range up to 500FT (150 Meters) from each sensor to the receiver. Cars, people, and animals can be detected within 24FT/8M of each sensor’s angled eye. Think of this system as your long-range doorbell..
  • Easy to Install & DIY - This system is fully-expandable, with plug-and-play sensors that can be set up within minutes. Pair each receiver with up to 16 sensors for full coverage of your property. The sensors can be mounted to walls, fence posts, trees, or any other surface, providing extra layers of security and home safety..
  • EXTREMELY RELIABLE - Much time went into developing and testing our reliable InfraRed outdoor driveway alarm wireless detector that will dependably alert you to activity around your property. See Owners Instruction Manuel to swivel mount to refine the focus and detection angle of the sensor. 2 YEAR WARR....
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