Heat Sensor Distances of 2025
Best Choice1
RALBILHVAC Refrigerant Leak Detector, Heated Diode Sensor & 0.05 oz/yr - Max Sensitivity Halogen Freon Leak Detector Sniffer Air Conditioning Detection 20-Inch Probe for R134A R410A CFCs HCFCs HFCs HFOs
Main highlights- 【Manual/Auto Zeroing & Manual Mute Function】After powering on, the HVAC leak detector enters a warm-up state (≤35 seconds) and automatically zeros. During detection, you can also manually zero at any time (short press "ZERO") to avoid false alarms from environmental changes, ensuring precise and reliable results. Long press "MUTE" to enable silent mode, which persists after restart, long press again to restore sound. Mute function of the HVAC leak detector allows you to focus more on the detection work.
- 【High-Sensitivity Sensor & Inhalation Design】The automotive freon leak detector features an advanced heated diode sensor with 20x higher sensitivity than soap bubbles, offering a maximum sensitivity of 0.05oz/yr(1.5g/a) in stationary state for precise measurements and the ability to detect subtle leaks in various environments, and the probe can be replaced. This HVAC freon leak detector's unique inhalation design ensures faster response times than traditional leak detectors.
- 【Detects All Halogen Refrigerants & Wide Application Range】 The refrigerant leak detector supports the detection of all halogen refrigerants, including HFCs (e.g., R134A, R404A, R125), HCFCs (e.g., R22, R123, R124, R502), CFCs (e.g., R11, R12, R500, R503), HFOs (e.g., R1234ZE, R1234YF) and blends as well as halon gases in fire suppression systems. This refrigerant leak detector is widely used in automotive/home AC repair, refrigerator maintenance, refrigeration equipment testing, and medical equipment and other scenarios.
- 【Compact Design, Comfortable Handle & 20-Inch Flexible Probe】The HVAC refrigerant leak detector is made of high-strength industrial plastic, offering impact and drop resistance to protect internal components and extend service life. The ergonomic handle is non-slip and comfortable, reducing hand fatigue during prolonged use. This car refrigerant leak detector is equipped with a 20-inch flexible probe, longer than traditional probes, its flexible design allows easy bending and positioning, making it ideal for complex detection environments.
- 【Buzzer Alarm & Sensor Fault Alarm】When the HVAC halogen detector detects a leak source, it emits rapid beeps, and the LED indicator shows the leak level—the higher the number, the more severe the leak. If the sensor is poorly connected or faulty, it also emits rapid beeps, and the LED displays a dash "-". In this case, check or replace the sensor to avoid false or missed detections.
- 【9-Stage Leak Level Display & 3-Level Adjustable Sensitivity】 The auto ac leak detector sniffer features a high-definition LED display that shows 9 leak levels in real time, providing a clear visual indication of refrigerant leakage severity. With 3 adjustable sensitivity levels (high, medium, low), the ac leak detector adapts to different environments and refrigerant concentrations. High sensitivity detects minor leaks, while low sensitivity avoids false alarms from other gas interferences, ensuring precise detection and cost savings.
- 【3 Years Warranty】We promise 3-year after-sales service and 7 x 24 hour customer service to ensure your shopping experience. If you encounter any problems during use, please do not hesitate to tell us. We are here to help you!!
9.8Exceptional
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Value for Money2
HoneywellHoneywell Safeguard Motion Sensor Ceramic Space Heater, Large Room, Black –Ceramic Heater with Two Heat Settings and Slim Tower Design
Main highlights- To ensure proper use of the space heater, please reference the owner’s manual.
- SPACE HEATER – The Honeywell Safeguard Motion Sensor Ceramic Space Heater provides powerful, 1500W whole room heat in any space in a slim, space saving design. This tower heater features easily controlled comfort, a motion sensor and oscillation.
- SMART SAVINGS – Worried about heating costs? An electric heater can help you save up to $276* in heating costs this year. A space heater for indoor use can help you save money while providing soothing warmth.
- SAFETY MATTERS: The large room heater offers safety options including a Safeguard motion sensor that shuts off the heater if an object is too close, plus 2x Overheat Protection, thermal insulated wiring, tip over protection and an auto-off timer option.
- INCREASE YOUR COMFORT – Always be comfortable, no matter what season it is. This personal heater has a tower design, so it fits into any room in your home without taking up too much space. It has a sturdy base, oscillation and cool touch plastic housing.
- HONEYWELL QUALITY: Help improve heating and energy savings in your home, bedroom or office using a Honeywell portable heater. Honeywell offers whole room heaters, tower heaters and oscillating heaters.
9.5Excellent
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3
XMXZYXThermal Underfloor Heating Sensor Probe Suitable for Most Heating Installations Heat Floor Heating Sensor Probe 10k ohm
Main highlights- underfloor heating sensor probes .Product performance is stable. Can work for a long time. (Annual resistance value drift rate ≦ 5 ‰) high sensitivity, fast response speed.
- thermal underfloor heating sensor probe (119 in. wire length),sensor probe for underfloor heating 10 kohm ntc
- temperature floor sensor 10kohm,For Most Heating Installations.
- With good insulation sealing and resistance to mechanical collision, bending resistance, high reliability. Can be used according to the installation conditions of the package, easy for users to install
- 1 year free replacement
9.3Excellent
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4
System SensorSystem Sensor 5604 194°F Fixed Temp Single Circuit Heat Sensor
Main highlights- 1- SYSTEM SENSOR 5604 SINGLE-CIRCUIT, 194 FIXED 5600 SERIES
9.2Excellent
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5
SplenssySplenssy Heat Alarm Heat Detector, Fixed Point Thermal Alarm, A1 Level, Alarm Temperature 55°C-65°C, Battery Powered, 85dB Alarm Sound for Home Kitchen Garage Boiler Houses
Main highlights- 【Wide Use - Indoor Area】- Ideal for kitchens, garages, boiler houses, and other areas where there are normally high levels of fumes and smoke.（Note: The device does not detect gas, smoke, or flames.)
- 【What It Is ?】- It's a Heat Alarm, Fixed Temperature Heat Detector 5 Year Battery Powered 85dB Alarm Sound for Home Kitchen GarageThe heat alarm gives a fire warning when the temperature at the alarm reaches 55℃~65℃. It is ideal for kitchens, garages, boiler houses, and other areas where there are normally high levels of fumes, smoke, or dust i.e. place where smoke alarms cannot be installed.
- 【High Volume Alarm Sound】- Its 85dB sound alarm is powerful enough to wake you up on emergency occasions. (Note: Please carefully read all the included user instructions before installing and using the device to ensure effective use.)
- 【High Precision and Stable Thermal Sensing】- Thermistor heat sensing element for accuracy reliability and stability power alarm test button.Comes with a 5-year battery (5Y); supports 30 days low battery warning.
- 【Fixed Temperature Heat Detector】- Fixed point thermal alarm, A1 level, alarm temperature 55°C-65°C.(The heat alarm should NOT be installed in escape routes. It cannot replace the smoke alarms.)
9.1Excellent
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6
TopvicoTopvico Water Leak Detector, 120dB Loud Siren, Powered by 9V Battery (not Include), Sensor Alarm for RV Kitchen Basement Water Heater, 5 Pack
9.9 Noise level9.9 Easy installation9.7 worth the moneyWhy we love it
Loud alarm: 120dB
Prevent water damage: Low cost effective
Easy install: Double sided sticker 37.8 cable
9.0Excellent
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7
BeautyfanSpace Heater, Space Heaters for Indoor Use with Humidifier/Sensor/ECO/3D Flame Effect/Thermostat/Timer/Oscillating, PTC Fast Electric Heaters, Quiet Portable Room Heaters for Bedroom/Office/Home
Main highlights- 【Versatile Airflow Control with 3D Oscillation】Take control of your comfort with our space heater indoor's versatile features. Enjoy the flexibility of left-to-right oscillation, ensuring even distribution of warmth throughout the room. With 4 temperature settings, including a fan-only ECO mode, you have the power to tailor the airflow to your liking, creating the perfect environment for any occasion.
- 【Intelligent & Personalized Heating】Elevate your comfort level with human body sensing technology. Our space heaters for indoor use intuitively responds to your presence, adjusting its warmth to suit your needs. Enjoy a personalized heating experience that anticipates and caters to your comfort, enhancing your overall sense of well-being.
- 【Immersive Ambiance with 3D Flame Effect】Transform your surroundings with the mesmerizing 3D flame lighting effect. Watch as the flames dance and flicker, creating a visually stunning ambiance that adds a touch of warmth and sophistication to any room form our space heater. Immerse yourself in a unique atmosphere that transcends the ordinary.
- 【Enhanced Comfort with Humidification】Experience unique comfort as our space heater indoor not only provides soothing warmth but also features a built-in humidification function. Feel the gentle embrace of moist air, ensuring your living space remains cozy and conducive to relaxation.
- 【Convenient & Smart Operation】Seamlessly manage your comfort from anywhere in the room with the convenience of a remote control. Whether adjusting the temperature, setting a timer for 1-12 hours, or toggling between modes, our warm air fan offers dual-sided control for both the remote and the user-friendly panel. Simplify your experience and indulge in the luxury of effortless climate control.
8.8Very Good
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8
SENSTREEWTC100 Wireless Temperature Controller Digital Plug-in Thermostat Outlet Remote Control Heating Cooling Mode for Window A/C Fan Heater Greenhouse Homebrewing Reptile (Built-in Temp Sensor)
9.9 Easy installation8.2 Temperature control8.0 PrecisionWhy we love it
Automatically adjusts temperature
Easy setup and programming
On/off manual button
8.7Very Good
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9
System Sensor55% OffSystem Sensor 5623 - Fixed Temperature Heat Detector 135°F
8.5Good
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10
System SensorSystem Sensor 5624 Fixed Temperature Heat Detector
8.3Good
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