Digital LUX Meter - BTMETER BT-881D Light Meter Test Illuminance 0.1~400,00 Lux, Sensor Head Rotate 270 Degrees, with LUX/FC, MAX/MIN, Temperature, Data Logger for LED Light, Grow Plants

Digital LUX Meter - BTMETER BT-881D Light Meter Test Illuminance 0.1~400,00 Lux, Sensor Head Rotate 270 Degrees, with LUX/FC, MAX/MIN, Temperature, Data Logger for LED Light, Grow Plants

Decibel Meter, Tadeto Digital Sound Level Meter Portable Sound Meter 30dB to 130dB MAX Data Hold with LCD Display Backlight A/C Weighted for Home Factories