Hathdia Soil Moisture Meter,Plant Hygrometer Moisture Sensor Plant Water Monitor for Potted Plants,Garden,Farm, Lawn(No Battery Needed)
Soil Moisture Meter: This single probe soil moisture meter is specially designed for testing the moisture level in the soil, helps you decide whether the plants need water or not, helps to keep plants alive..
Easy to Use:No batteries or electricity needed,just insert the water meter probe into the soil to the plant root level, the indicator pointer will show you the readings immediately..
Accurate and Reliable: Single probe sensor is very sensitive, pointer on the dial moves quickly and display accurate values when testing soil moisture. 7.6” long probe is also suitable for large potted plants..
Portable & Lightweight：This soil hygrometer can be used both indoors and outdoors, with its portable and compact design, you can test at any time any place as you want.This soil moisture meter is a great handy tool for potted plants, garden, farm, lawn plant care..
Warm Prompt: This meter is designed for soil only, can not be used to test water or other liquid directly. Please not let the probe touch stones while inserting,please wipe the probe after each use.Any problem please feel free to contact us at the first time..
Jonard Tools FPL-5050 Fiber Power Meter & Optical Light Source Kit (-50 to +26 dBm, Single-Mode)
ESSENTIAL KIT: This tool kit provides everything you need to provide a stable light source and measure the relative optical power of fiber optic cables.
POWER METER (FPM-50A): Measure single-mode wavelengths from 800-1650 nm with relative power ranging from -50 to +26 dBm.
LIGHT SOURCE (FLS-50): Provides a stable light source at 1310 nm or 1550 nm wavelengths for the optical power meter.
INCLUDED ADAPTERS: Includes FC, SC, and LC adapters for both power meter and light source for PC/UPC connectorized cables.
INCLUDES: FPM-50A Power Meter, FLS-50 Optical Light Source, and H-22 Carrying Bag with Straps.
Small Aquarium Underwater Ambience with Very Light Bubbling
...erwater quantum meter is the premium tool of choice among leading scientists and serious growers for accurately measuring the photosynthetically active radiation (PAR) underwater..
MEASURING PAR IS CRITICAL - An accurate PAR meter is critical for measuring the intensity of light used in the precision growing of plants and other photosynthetic organisms in greenhouses, growth chambers, farms, gardens, aquariums, and additional agricultural systems. Our underwater quantum meters are specifically designed to measure the intensity of light underwater for biological, chemical, and physical processes in natural waters and aquariums..
UNDERWATER ACCURACY - Underwater PAR measurements can read low when a quantum sensor is calibrated for air. The MQ-510 applies an immersion effect correction factor to get instant, accurate measurements underwater. Precisely measures and combines the intensity of all photons between 400 and 700 nm to give a single PAR reading in µmol m-2 s-1 within 5 % uncertainty. Unlike hobby-grade PAR meters, our meter has a stable, accurate calibration with an accuracy drift rate of less than 2% per year..
Dr.meter Professional LED Light Meter, Digital Illuminance Meter with 0-200,000 Measuring Ranges and 270 Degree Rotatable Detector
★【Professional LED Light Meter】: Whether you're a set designer, or looking to set the mood, proper lighting is a must. The Dr.meter Digital LED Light Meter measures the brightness (up to 200,000 lux) of fluorescent, metal halide, incandescent, and high-pressure sodium lights, guaranteeing the perfect luminosity every time..
★【Ultra Fast, Ultra Precise】: A split second is all it takes for an accurate reading. An advanced built-in calibration sensor measures the light levels at a super fast, twice per second speed..
★【Easy and Intuitive】: Using this digital LED light meter couldn't be easier. Just turn it on, point it at the light source, and check out the reading on the display screen. There are 4 adjustable measuring ranges (200lux, 2,000lux, 20,000lux, 200,000lux). Preprogrammed settings like auto power off, data hold, unit adjustment, and more do the hard work for you..
★【270 Degree Rotatable Detector】: Keep an eye on the light level anywhere in the room. The optical detector rotates a full 270 degree for muti-directional detection..
★【Tripod Mountable】: Have your hands full? Don't sweat it. Thanks to the screw base design, this LED light meter can be placed on a tripod for hands-free use..
