
Top rated Detectors
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1. Bosch Home & Garden Truvo
Digital detection device: Bosch Truvo. Quick and easy location for safe drilling. Fast and precise results - simply scan walls and ceilings with the Truvo. Easily locate metal objects and live wires for safer drilling when mounting pictures or lamps. The LED traffic light system and warning tones indicate where it is better not to drill, and the one-button operation simplifies handling. Ready to use immediately - easy locating at the push of a button. One-button principle with auto-calibration - just press the on/off button and start locating right away. Three-color LED for visual feedback. Clear and simple analysis of results - the LED traffic light system lights up red when an object is detected, yellow when one is nearby, and green when no object is found. Visual feedback is enhanced by helpful warning tones. Precise marking for safer drilling. The marking slots on the side of the tool make it easier to accurately mark the results. Included: Bosch Truvo detection device, batteries 3 x 1.5-V-LR03 (AAA).

2. Airthings Corentium Home
Small, portable, and powerful radon gas detector with integrated display - Gray
What is Corentium Home?
Corentium Home by Airthings provides everything you need to keep an eye on your radon levels at all times. Corentium Home is a device with the highest measurement accuracy and user-friendly operation. The device automatically adapts to its environment and eliminates inaccuracies caused by external factors.
Why is radon so dangerous?
Radon is one of the leading causes of lung cancer in non-smokers. Radon kills six times more people than residential fires and carbon monoxide poisoning combined. Radon is present everywhere, and radon concentrations vary from room to room and from day to day. That’s why continuous monitoring is so important. You will receive the first results of radon measurement after just 24 hours, without laboratory costs.
Application
The LCD display shows the average radon concentration for a day, a week, and a year. Optionally, you can create a report online from your measurement results. Corentium Home is lightweight and portable, making it easy to use in different rooms, floors, or buildings. However, Airthings always recommends long-term monitoring. Keep an eye on daily radon levels or medium- to long-term values. This way, you can feel safe at all times.
Benefits
- Within 24 hours, you will see the first measurement of your radon exposure.
- Portable - Small and battery-operated with a battery life of 2 years.
- Accurate - Measures values over a longer period, allowing for greater accuracy than traditional methods.
- Never pay laboratory costs again, saving you money!
Mobile or stationary detector for monitoring radon. Battery-operated: 3 AAA batteries included. Battery life up to 2 years. LCD display. Report can be created online. Dimensions: 12 x 6.9 x 2.5 cm. Weight: 148 g.
Pro
- Display of daily and monthly values
- Daily value and 7-day value
- The product is extremely easy to operate and commission
Contra
- No possibility of transmitting the measured values
- Missing history

3. Bosch Professional D-Tect 120
Bosch Professional Wallscanner D-tect 120, Area of application: Shower, Electrical engineering, House, Industry, Kitchen, Sanitary facilities, Functions: Non-contact measurement, Non-contact detection of alternating voltage, Detection of ferrous metals, Detection of electrical cables, Battery 4x1.5V-LR6. Detectable materials are water-filled plastic pipes, ferrous metals, non-ferrous metals, wooden substructures and live cables.
Pro
- also sees quite low-lying lines
- Reliably detects metal and live wires
- Very reliable so far
Contra
- The prices of these tools are all a little high
- Does not have to detect something
- Does not work

4. Bosch Professional GMS 120-27
Bosch Power Tools locating tool with bag GMS 120-27 (type: 0601081700)
Maximum search depth: 12 cm
Suitable for live working: yes
For searching wood: yes
For searching metal: yes
Maximum detection depth wood: 30 mm
Maximum detection depth metal: 120 mm
Maximum detection depth live wire: 50 mm
The GMS 120-27 Professional locating device makes it easy and intuitive to locate objects. The locating results are shown via a signal indicator on the display and the colour-coded marking hole. The user-friendly device offers simple operating mode selection and the marking hole allows you to mark exactly where objects have been located.
The robust GMS 120-27 was developed for harsh construction sites and is equipped with dust and splash water protection to IP54 and a shock-absorbing rubber housing. It helps to locate and localise metals, power lines and wooden beams in drywalls. Locating objects in walls before drilling ensures safe working, especially during renovation work when fitting cupboards, fitted kitchens, sinks, boilers and heating systems or installing air conditioning and sprinkler systems.
This locator not only determines the centre of the located object, but also indicates its material properties such as magnetic or non-magnetic metal, a live wire or non-metallic material.
Scope of delivery: Bag, 2 x 1.5 V LR6 battery (AA)
Pro
- Handy and easy to handle
- Recognition is very good
- I have found my line
Contra
- Could be smaller
- Too expensive
- Maybe not for amateurs like me

5. TFA PH Check
The pH value is a measure of the acidic or basic character of an aqueous solution and refers to the concentration of hydrogen ions. The lower the pH value, the higher the acidity on a scale of 0 to 14. Pure water has a pH value of 7 and is considered neutral. Liquids with a pH value above 7 are bases or alkaline solutions.
The pH value is particularly important for fish and plants in aquariums and ponds, for drinking and heating water, swimming pools, and in the production of food and cosmetics.
With the digital pH meter PH CHECK, you can easily and reliably determine the pH measurement and the current temperature. The pH values of solutions are temperature-dependent. The integrated thermometer provides automatic temperature compensation, resulting in particularly accurate results. By pressing the HOLD button, the current measurements are retained and displayed permanently. Regular calibration ensures the device's functionality and is easy to perform.
The pH meter is splash-proof according to IP65 and can be cleaned under running tap water or with distilled water after use. To prevent the electrode from drying out, it should always be stored in the supplied container filled with a special solution.

6. TFA PH-Check
The pH value is a measure of the acidic or basic character of an aqueous solution and refers to the concentration of hydrogen ions. The lower the pH value, the higher the acidity on a scale from 0 to 14. Pure water has a pH value of 7 and is considered neutral. Liquids with a pH value above 7 are bases or alkaline solutions. The pH value is particularly important for fish and plants in aquariums and ponds, for drinking and heating water, swimming pools, and in the production of food and cosmetics. With the digital pH meter PH CHECK, you can easily and reliably determine the pH value and the current temperature. The pH values of solutions are temperature-dependent. The integrated thermometer ensures automatic temperature compensation, providing particularly accurate results. By pressing the HOLD button, the current measurement values are retained and displayed permanently. Regular calibration ensures the functionality of the device and is easy to perform. The permanently attached glass probe is especially suitable for measuring in aggressive media. The pH meter is splash-proof according to IP65 and can be cleaned under running tap water or with distilled water after use. To prevent the electrode from drying out, it should always be stored in the supplied container filled with a special solution.

7. Joy-it JT-RAD01
The JT-RAD01 radiation measuring device is used to detect gamma, beta and X-ray radiation and is characterised by its particularly easy handling, high measurement stability and its handy and robust design. It has a large, backlit LCD colour display. The measurement results can be displayed both as clear statistics and as a graphical evaluation.
Pro
- Very easy to use
- Display languages: D / E
- Good operating instructions
Contra
- Battery runs out quickly
- No upload of data to PC possible (USB only for charging)

8. Bosch Home & Garden Truvo Uni
Fast and easy results - The Truvo detection device is the simple solution for scanning walls and ceilings to locate metal objects or electrical cables. It enables safer drilling when hanging pictures or installing lamps. An LED traffic light system and an audible alert indicate where drilling should not occur. For even better results, LEDs with symbols for metal and electrical cables show what the detection device has specifically found. Thanks to a single on/off switch and automatic calibration, you can start locating immediately. A language-neutral quick start guide with simple graphics is included for accurate results through proper handling and a quick start with the tool.
Pro
- Displays electric current
- Shows metal
- Easy to operate

9. Voltcraft Anemometer
Compact vane anemometer with low-loss magnetic pickup. It can measure air velocity in m/min, volumetric flow in m³/s, and air temperature, displaying these readings on a backlit screen.

10. Voltcraft Anemometer AN10
Compact vane anemometer with low-loss magnetic pickup for measuring the wind and flow velocity of gases. The speed can be displayed in five different units (m/s, ft/min, km/h, mph, and knots) on the screen. Additionally, the average speed or the maximum speed of the measurement process can be determined and displayed on the illuminated screen. Special feature: magnetic vane.
