Radiation Level Grading & Sound Alarm: With a built-in grading function, the device shows radiation levels through color-coded indicators. 1 x Electromagnetic radiation tester. Magnetic field strength: 0-99.999μT.
eBay
Decibel Meter Data Logger, Digital Sound Level Meter with Recording, dB Meter 30~130dB, 31,000 Data, 3 Color Light Alarm
Aliexpress UK
1 x Electromagnetic Field Tester (Battery Not Included). LCD Display: Using a large LCD screen, the values are clearly displayed on the screen, which is more convenient to read and has a better experience.
eBay
Pinless Moisture Meter Wood Humidity Tester Damp Meter for Floor,Wood, Walls, Concrete Non-Destructive Testing Moisture Meter
Aliexpress UK
Intuitive Display, Easy to Understand: The tester uses a 9 LED light to indicate radiation intensity, with green representing normal and low-radiation areas, yellow for caution areas, orange for high-radiation areas, and red for warning areas.
eBay
DN15 Rotary Water Meter Garden Home Plastic Cold Water Meter Single Water Flow Wet meter Measuring Tool
Aliexpress UK
Bandwidth Range： 30MHz~8GHz. Electromagnetic Filed Range：V/m:0~999/uT:0~19.99/mG:0~199.99/uW/cm2:0~9999. 10.Three-axis/signal Detection, High Sensitivity Three-Axis Induction Probe (X-Axis, Y-Axis, Z-Axis).
eBay
Voltage Meter For High-altitude Operations Digital Multimeter Smart Backlit Wristband Current Meter Voltage Resistance Meter
Aliexpress UK
Compact and Portable Design: This product is lightweight and compact, ensuring easy portability and convenient storage. Take it with you wherever you need it, without hassle. - High-Definition VA Anti-Glare Color Screen: Enjoy ultra-clear visibility with the high-definition VA anti-glare color screen.
eBay
Zigbee Smart Ultrasonic Heat Meter LCD Display Air Conditioner Cold and Heat Water Meter Heating Energy Meter Work with Tuya App
Aliexpress UK
Light: Dark green 0 to 1.5 mGauss, green 1.5 to 2.5 mGauss, yellow 2.5 to 10 mGauss, orange 10 to 20 mGauss, red 20 + mGauss. Inspection Range: 0 to 20+ mGauss. If you do not receive our reply within 48 hours, pls.
eBay
2" 52mm Car Auto Tachometer Gauge 0~8000 RPM Meter Universal 7 Color LED Meter Boat tacometro moto tach digital speed meter
Aliexpress UK
The LCD screen provides clear and easy-to-read data. Its ergonomic design makes it comfortable to hold and easy to carry. Multifunctional Applications: The RF mode detects signals, 5G signals, and microwave radiation.
eBay
80A Tuya WIFI Smart Life Voltage Meter AC 85-290V Electric Meter 3-phase 4-wire DIN-Rail Energy Monitor KWS Current Power Meter
Aliexpress UK
Model: FY8809. Electromagnetic Field Intensity Audible and Visual Alarm: When the detection result exceeds the safety value, the screen will display the corresponding value, give an alarm sound, and the indicator light will turn red.
eBay
Tuya Smart Energy Meter Monitor Module WiFi Energy Clamp Bidirectional Meter 80A Current Transformer Real-Time Electricity Meter
Aliexpress UK