HIGH QUALITY MATERIAL - Universal doorbell rain cover is made of high quality plastic material, safe and reliable to use, sturdy and durable for long-term use. | GOOD PROTECTION EFFECT - Waterproof doorstop protector has a good protection effect. It is waterproof, explosion-proof, sun-proof and UV-proof, which can better protect mechanical equipment. | SIMPLE AND PRACTICAL - Waterproof cover for home access control is very simple and practical, with high compressive strength, suitable for apartments and villas. You can use it with confidence. | WIDE RANGE OF APPLICATION - Multifunctional doorbell rainproof cover has a wide range of application. The rain cover is suitable for all types of fingerprint devices, access control keypads, time and attendance machines, doorbells, etc. | EASY TO INSTALL - Our doorbell rain cover is easy and quick to install, just apply glue (not included) at the bottom and stick it firmly to the wall.

MULTI PURPOSE: Brightness detector is widely used for the lighting test of factories, warehouses, schools, offices, public stores, libraries, museums, lamp plants, photo shooting, stage lighting configuration, etc. | BASIC PARAMETERS: Light meter is a special instrument for measuring the luminosity and brightness. The model is LX101BS, the measurement range is 1-100000Lux, the resolution is 1Lux, and the sampling frequency is 0.5 seconds. | UNIQUE DESIGN: Illuminometer has a 3 1/2 bit 18mm LCD display screen, with clear reading and range switchable, providing high reliability and durability, allowing extensive light measurement. | EASY TO CARRY: Hand-held photometer is small in size and light in weight. It is equipped with a suitcase, which is easy to organize and store. It does not take up space and can be used at any time when you need it. | EASY TO INSTALL: Photographic spectrometer has a clear structure and is simple to install. It does not require complex tools, and only takes a few minutes to complete the installation.