Speed: 15001 rpm (inclusive) -18000 rpm (inclusive)

it's recommended to wipe it with a wet cloth

Is there a light and sound: No

Material: 100% Polyester

Wristband material: metal

Electromagnetic Detector – EMF Meter for Electrical, Magnetic Field & Radiation Testing Pet Supplies Speed: 15001 rpm (inclusive) -18000Material: ABS Features: Tests Gauss levels to help detect electromagnetic radiation and promote safer surroundings. Special Function: 5 LED indicators display different radiation levels for easy monitoring. Powered by 1 9V battery (included). Application: 50 60Hz frequency monitoring Radiation Level Indicators: Dark Green: 01. 5 milligauss Green: 1. 52. 5 milligauss Yellow: 2. 510 milligauss Orange: 1020 milligauss Red: 20+ milligauss Dimensions: 14.