DROK USB Rechargeable LED Light, Touch Controlled and Dimmable Bedside Lamp with Soft Lighting, Cordless Space Night Light Student Desk Lamp for Kids Living Room Bedroom
SPECIFICATIONS Charging Time: about 2 hours Battery Capacitance: 500mAh Color Temperature: natural light 4000K Power Supply: 500mAh Polymer Lithium Battery Features: short touching for turning on/off; long touching for NiteCore Extreme; Non-volatile Memory for light brightness Operating Conditions: 2.5 hours for extreme high brightness or 240 hours for lower brightness Dimensions: 3.15Ã—3.15Ã—1.85 inches Weight: 3.7 ounces CHARGING 1. Getting charged by connecting to the computer with a USB Cable or a USB charging adapter (DC 5v); 2. The indicator light would light up when is being charged; and would light off when fully charged, assuming it being charged when the lamp turned off. NOTES 1. Please charge the light when its brightness is weak to ensure the luminous efficiency 2. Please do not place the product at anywhere with high temperature or high humidity 3. When cleaning the lamp body, please use a dampened soft cloth soaked with neutral detergent to wipe, then wipe again with a dry cloth. Never use a sharp object to touch the surface of the lamp body 4. To avoid discoloration, deterioration, or any damage with the lamp, please do not clean or spray the lamp body with any organic solvents or pesticides, etc. other than the neutral detergent; otherwise would cause corrosion or abrasion
Actopus Speaker Phase Meter Polarity Tester PH Phasemeter for Auto Car Audio System
Material: Plastic Color: Black Size: 10.5cm x 7cm x 2.5cm/ 4.1" x 2.8" x 1.0"(L*W*H) Applicable: the speaker phase and the amplifier output phase testing. Set-up for car audio system of speakers and amplifiers. Method of Application: This CD include 4 section test music: section 1: left channel noise signal section 2: right channel noise signal section 3 and section 4: phase test signal Put it in car CD player, and play section 1 or 2, can check the left/right channel connection is right or not. Play the section 3 or 4, the sound speaker will produce a fixed frequency signal. then press the 'test' button on the phasemeter, 3 green light flash and 1 red light indicates that the speaker output is in positive phase (correct connection) ; 3 red light flash and 1 green light indicates that the speaker output is in negative phase (reversed connection).
UNI-T UT383 LCD Display Handheld Mini Digital Luminometer Photometer Luxmeter Light Meter 0-199999 Lux
This practical mini light meter is stable, safe and reliable to use. It can be widely used in lamps, husbandry, industrial and mineral industries, laboratory and office, etc.Specifications: Measuring Range: 0-199,999 lux Resolution: 1Lux(0-9999 lux); 10Lux(>=10000 lux) Accuracy: Â±(4%rdg+8 dgts) (0-9999 lux); Â±(5%rdg+10 dgts) (>=10000 lux) Sampling Rate: 0.5s Operating Temperature: 0-40Â°C(
Eronde RZ-T80 Digital Handy Laser Distance Meter with 80 M 262FT Range
Specification: 1. Measuring Range: 0.05 to 80 meters / 0.16 to 262 ft. 2. 30 data records and recall function . 3. Automatic calculation of area and volume. 4. Min/Max distance tracking (display value). 5. Laser Class: Class II , security level laser technology. 6. Display illumination and multi-line display(4 lines). 7. Bubble level equipped as a spirit level tool. 8. Easy addition/subtraction of measurement. 9. Battery: 2 X 1.5 AAA ( not included ) 10. Switchable unit among metre (m), inch (in), feet (ft). 11. IP54 protection (dust andamp; splash proof). 12. Size: 11 * 5 * 2.5 cm / 4.33 * 1.97 * 0.98 in 13. Product Weight: 92 g Package Content: 1 x Laser Distance Meter + 1 x Pouch + 1 x Hand Strap + 1 x Instruction manual
YSI YAP181 Silica Replacement Reagent Photometer Test Kit, 0 to 4.0 Range (Pack of 200 tests)
Reagent replacement packs for the 9300 and 9500 photometers. Instructions are included with the starter kits. The replacement packs would be used after the starter kit is finished. Packs include reagents for 200 tests per pack. 0 to 4.0 Parameter range.
Monitor light levels anywhere with fast, stable and accurate response. Results are easily read on the extra large digits (â…ž" high, 22mm) that also indicates when the battery is low or the reading over range. The color and cosine corrected sensor meets C.I.E. photopic spectrum. Will read LED light. Also features an external zero adjustment, hold function and a tripod back. Comes ready to use with soft padded case and shoulder strap, instructions, detachable sensor with cover, and a 9V battery. N.I.S.T. traceable certificate of calibration available.
LONN Portable LCD Instant Read Digital Light Meter Tester Luxmeter Luminometer Photometer Lux Meter, 1Lux~100,000Lux, LX1010B
LONN New Multifunctional Digital Light Lux Meter Analyzer Detector Tester Illuminance Measurement Photometer Luxmeter Light Illuminometer Appreciate your choice of this Lux meter. Please read throught this manual carefully for proper operating techniques.This digital lux meter is a precise instrument which could be use for detecting light intensity in any situations. â… FEATURES â—High accuracy in measuring, fast reflection time â—Data hold function â—Symbolly and unit display for easy reading â—Zeroize automatically â…¡GENERAL SPECIFICATIONS â—Measuring range: 1Lux~100,000Lux â—Display: 3 1/2 digits LCD display, maximum display value 1999 â—Range Selection: 2,000Lux, 20,000Lux,100,000Lux 20,000Lux range: readingÃ—10 100,00Lux range: readingÃ—100 â—Accuracy:
Professional Lux Meter LA-952 FEATURES: â–¶Measuring range: 0Luxï½ž400kLux/0Fcï½ž40kFc ï¼ˆMeasurement repeatabilityï¼‰ â–¶Analog bar-graph indication â–¶Real time and date display â–¶High accuracy â–¶Data hold â–¶Meter corrected for spectral relative efficiency â–¶Automatically revise parameters for onstandard illumination â–¶Short rise and fall times â–¶Selectable measuring units: Lux or Fc â–¶Meter automatically shuts down after approx. 15 minutes of inactivity â–¶MAX/MIN record â–¶Large LCD display â–¶Peak-hold â–¶4-level selectable measurement ranges â–¶Automatic measurement â–¶Low battery indication SPECIFICATIONS: Display: 4 digits LCD display Measuring Range: 0 Luxï½ž400k Luxï¼›0Fcï½ž 40k Fc Spectral Response: CIE photopic (CIE human eye response curve) Over Range Indication: LCD displays "-OL-" or "-LO-" Spectral Accuracy: CIE VÎ» function(f1'â‰¦6%,f2'â‰¦2%) Accuracy: Â±3% rdgÂ±0.5%f.s.(10,000Lux) Sampling Rate: 2 times per second Photo Detector: Silicon photo-diode with spectral response filter Power Supply: One 9V battery, 006P, NEDA1604 or IEC6F22 Photo detector Lead Length: approx. 2.5m Dimension(L*W*H): 185*66*33(mm) Weight: 308g