Best Class 2 20 Meters

Apogee Instruments DLI-500: 400-700nm PAR Meter - Daily Light Integral Meter for Full-Spectrum LED Greenhouse Grow Lights, Sunlight, and Plant Care

... use by the Apogee Instruments’ engineering team under the direction of world-renowned crop physiologist, Bruce Bugbee, PhD. Calibration is NIST traceable to accurately measure combined intensity of photons between 400 and 700 nm to give a single sunlight PAR reading within 5 % uncertainty. Unlike hobby-grade PAR meters that drift out of calibration quickly, our meter has a stable drift rate of less than 2% per year..
MADE IN THE USA: All meters are designed, built, and calibrated at our headquarters in Logan, Utah, USA. Apogee Instruments has been creating research-grade instruments for scientists and serious growers for over 25 years. All meters are backed by our industry leading four-year warranty and supported by our world-class, US-based customer support team..

✅ Magnetic Rechargeable - Convenient and there is no necessary to take off the green beam, without any removal or re-zeroing..
✅ Highly Visible Green Beam - the output of the green beam is less than 5mW, Class IIIA. The beam distance is about 200 meters/ day.
✅ Durable and Shockproof Aluminum Design - It is good at holding up to being knocked around a good bit and Keeping zero..
✅ Low Profile Design is Compatible with M-Lok Rail - You can attach the sight to Rifle Rail directly. One rubber button for rifle Beam on/off..
✅ Easy Zero Adjustment - Slowly tune Elevation and Windage interactively with included Allen key. Noted, only one direction may lock or damage the threads. (Elevation Max: 2 target circles.

LASER PRECISION - Measure distance in feet, yards, or meters using a 905 nanometer class 1 laser attachment.
VARIOUS RANGEFINDER MODES - Provides you with slope distance, vertical distance, horizontal distance, speed, height, closest and farthest objects, distance compensation, and your last 20 readings.
RECOMMENDED THROWING DISTANCE - Use Distance Compensation Mode to receive suggestions about the recommended throwing distance to get your disc to an object.
ESSENTIAL DISC GOLF ACCESSORIES - Advanced distance tracker can measure several different objects and can provide continual slope distance.
SMART RANGE TECHNOLOGY - Precisely measure speed and distance with an advanced laser scope to improve your disc golfing game.

Frequency range: 3-30MHz. Perform best on 20-30Mhz (15meters, 12meters, 10meters) When the amp works bellow 20Mhz, the output power will be lower and VSWR will be higher than it works on 20-30MHz, and the temperature also will get higher..
Working mode FM-AM-CW-SSB. FM mode: max output power 150W (when input 10W). AM mode: max output power 150W (when input 10W). SSB mode: max output power 300W (when input 10W)..
Only work for HF handheld radio. If you are not sure whether your radios will work with this product, please email us or ask questions..
Recommended this product to hams with years of experience in operating power amp or people with patience and study spirit..

Includes 20 sets servo male, 20 sets female connector, 20 sets red male SYP 20, sets female SYP connector, 3 meters long 22AWG cables, and a tweezers in one box. Easy to store.
The black connector compatible with Futaba and JR connectors. Ideal for servo extensions DIY, repairing servo connectors. The red connector compatible with JST SYP connectors. Ideal for power cable..
The cable is 3 meters long 3P wires, and 22AWG. The conduct is made of multi-core tined copper, which is strong and can endure enough current.
Each set includes connector housing, protective connector housing and crimp pin connector..
The servo connector is 2.54mm pin spacing and the red connector is 2.5mm pin spacing.

CCTV 20Meters 2.1x5.5mm DC 12V Power Extension Cable For CCTV Security Cameras.
Used for Ip camera, DVR Standalone, Audio camera Led Strip, POE Switch box, Routers.

With a 170 degree field of view, record videos in outstanding 1080p and 720p, and record audio with a built-in high quality microphone. Capture 14PM....
The iON Air Pro Camera is extremely durable and waterproof WITHOUT a case up to 10 meters/30 feet..
Storage: Micro SD/Micro SDHC minimum class 6, recommended class 10 up to 32gb (not included). Battery life: approx. 2.5 hours.
Wi-Fi PODZ included to enable Shoot/Share functionality allowing real time upload to social media platforms.
Compatible with all iON Accessories and....
Apple and Android App allows you to check your camera’s content from your smart device, or upload straight to cloud or social media sites in....

Each perfectly curated 4-pack yields: 9 oz./255 g. 408 yards/374 meters..
Each Ombre, Scent, Stripe Skein: 2 oz./56.7 g. 95 yards/86 meters. Each Solid Skein: 2.5 oz./70.9 g. 120 yards/109 meters..
Knitting Gauge: 4" x 4", Size 7 (4.5 mm) needles, 20 stitches x 26 rows..
Crochet Gauge: 4'' x 4'', Size H-8 (5 mm) hook, 13 single crochets x 14 rows..
Care: Machine wash, tumble dry, do not bleach, do not iron, do not dry clean..

SIMPLE OPERATION : With only 3 buttons: 94dB, 114dB and Power On/Off Button. Simply power on the calibrator, select 94dB or 114dB level, and it's ready to go!.
CLEAR DIGITAL DISPLAY: Digital display shows the chosen dB level clearly with Backlight. Avoid making careless mistakes comparing with traditional power switching buttons..
PORTABLE: Lightweight and small size. Handy sound source for quick and easy calibration of sound level meters and sound measuring systems..
SUITABLE FOR 1/2" and 1" MICROPHONE SIZE 1/2" transducer cap (adaptor) is inserted on the calibrator, simply remove the cap to calibrate sound level meters with 1" Microphone.
PROFESSIONAL: Conforms to IEC60942 (IEC942) class 1 standard. Solid design provides accurate and reliable performance, suitable for personal, field and laboratory use..