VISIBLE LIGHT METERS
High quality meters designed to accurately measure visible light in LUX and Foot-Candles.
Bluetooth Light Meter
Standalone light meter that can also wirelessly display, log and transfer readings to your iOS or Android smartphone.
Sper Scientific’s Bluetooth Light Meter is small, light, and simple to use with results displayed on the meter’s large, bright backlit display. Choose readings in lux or foot-candles. Features a bar graph display, minimum and maximum hold (peak) and data hold functions.
This meter offers the convenience of Bluetooth for wireless communication with the free iOS and Android Apps. Results can also be remotely viewed on your smartphone in real time, saved and exported. This enables the meter to be used as a remote wireless probe and as a datalogger. Comes ready to use with instructions, tripod screw, and a 9V battery.
Dimensions: 8″ × 2″ × 1½” (206 × 54 × 36 mm)
Weight: 6 oz. (172 kg)
Advanced Visible Light SD Card Logger
Records data onto removable SD cards
Reads lux, foot candles and functions as a type K or J thermometer. A new advanced function compensates for the difference in tungsten, fluorescent, mercury and daylight ensuring highly accurate readings under various light sources. Records data onto standard SD memory cards (like a digital camera). When full, simply exchange SD cards for unlimited data storage. The removable SD card is easy to transport and insert into a computer’s memory card slot or SD card reader. Uploads pre-formatted data to Excel, without the need for additional software and cables. Additional SD cards are readily available in a variety of memory sizes. Each data set includes lux or foot-candle reading, time and date.
Features push-button zero adjustment, min/max, autoranging, auto power off, low battery indicator and hold function. Also reads thermocouple temperature with optional probes. This well-made unit is extremely accurate with fast response times, and includes a fold-out easel back and large, easy-to-read backlit LCD.
Comes ready to use in a soft carrying, case complete with a detachable color corrected probe that meets the C.I.E. photopic spectrum, 6 AA batteries, instruction manual, and an SD card (840059).
Uses optional USB Power Cable (840058) or AC Adapter (840097).
Light Meter (Lux & Foot-Candles)
Monitor visible light levels anywhere with fast, stable and accurate response.
Results are easily read on the extra large LCD (1½” high, 38.1 mm) with bar graph, low battery and over range indications. The color and cosine corrected sensor meets C.I.E. photopic spectrum. Will read LED light.
Also features min/max, peak function, auto power off, external zero adjustment, hold function and a tripod back. The lux/foot-candle light meter comes ready to use with a 9V battery, instructions, soft padded case with shoulder strap, and a detachable sensor (with 44″ cord) with cover for easier replacement or repair.
Meter Dimensions: 7¾” × 2¾” × 1¼” (197 × 70 × 32 mm)
Weight: 10 oz (283 g)
Light Meter Lux
Monitor light levels anywhere with fast, stable and accurate response.
Results are easily read on the extra large LCD display (⅞” high, 22 mm) that also indicates when the battery is low or the reading over range. The color and cosine corrected light sensor meets C.I.E. photopic spectrum. Will read LED light. Also features an external zero adjustment, hold function and an easel back. Comes ready to use with soft padded case and shoulder strap, instructions, detachable sensor with cover, and a 9V battery. Certificate of Calibration available.
Meter Dimensions: 7¾” × 2¾” × 1¼” (197 × 70 × 32 mm)
Weight: 10 oz (283 g)
Light Meter (Foot-Candles)
Monitor light levels anywhere with fast, stable and accurate response. Results are easily read on the extra large digits (⅞” high, 22 mm) 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 an easel back. Comes ready to use with soft padded case and shoulder strap, instructions, detachable sensor with cover, and a 9V battery.
- External Zero Adjustment
- 5 Year Warranty
- CE, RoHS
Meter Dimensions: 7¾” × 2¾” × 1¼” (197 × 70 × 32 mm)
Weight: 10 oz (283 g)
Advanced Light Meter
Monitor light levels anywhere with fast, stable and accurate response.
Results are easily read on the extra large LCD (1½” high, 38.1mm) with bar graph, low battery and over range indications. The color and cosine corrected sensor meets C.I.E. photopic spectrum. Will read LED light.
Also features min/max, auto power off, external zero adjustment, hold function and a tripod back. Offers peak function and a unique and very useful ability to compensate for the different colors of tungsten, florescent, mercury and sodium lights, with the push of a button. The result is readings true to actual lighting conditions. Comes ready to use with a 9V battery, instructions, soft padded case with shoulder strap, and a detachable sensor with cover for easier replacement or repair.
- Range: 400,000 lux; 40,000 fc
- Resolution: 0.01 / 1 lux; 0.001/1 fc
- Accuracy: ±(3% + 0.5% fs)
- Ability to compensate for the different colors of light
- 5 Year Warranty, CE, RoHS
Dimensions: 7¾” × 2¾” × 1¼” (197 × 70 × 32 mm)
Weight: 10 oz (283 g)
LED Light Meter with Color Temperature Compensation
LED Light Meter compensates for the wide variety of color temperatures available in modern LED lighting.
Unlike standard LED Light meters which are calibrated only to a particular color temperature bulb, Sper Scientific’s LED Light Meter compensates for the wide variety of color temperatures available in modern LED lighting. Choose modes for 2700K, 3000K, 3500K, 4000K, 4500K, 5000K, or 6500K and the meter’s internal calibration is adjusted for that color temperature resulting in equally accurate readings at every color temperature. There is also a mode for standard incandescent lighting. Results appear in Lux or Foot Candle on a large display that indicates when batteries are low.
For an even more thorough analysis, the meter reads luminous intensity which corrects for distance from the light source. The cosine corrected silicon sensor meets C.I.E. photopic spectrum. Features auto ranging, zero adjustment, Max / Min / Ave, data hold, and can store up to 99 manual data points. Comes ready to use with clear instructions, tripod screw, 9V battery, sensor cover, and a hard protective carrying case.
- Lightweight & Portable
Environmental Quality SD Card Logger
Records air speed, air temperature, relative humidity, light and thermocouple temperature onto removable SD Cards.
Features a 4-parameter environmental probe and also accepts standard type K or J thermocouple probes. Records data onto standard SD memory cards (like a digital camera). The removable SD card is easy to transport and insert into a computer’s memory card slot or SD card reader. Uploads pre-formatted data to Excel, without the need for additional software and cables. Each data set includes the parameter being measured, time and date. Features min/max, auto power off, low battery indicator and hold function. Also reads thermocouple temperature with optional probes. Extremely accurate with fast response times, and includes a fold-out tripod and large, easy-to-read backlit LCD.
Comes ready to use in a soft carrying case complete with a detachable probe, 6 AA batteries, instruction manual and an SD card. Uses optional USB Power Cable (840058) or AC Adapter (840097). N.I.S.T. Traceable Certification Report available (for Air Temperature & RH only).
Dimensions: 7″ × 2¾” × 1¾” (178 × 70 × 44 mm)
Weight: 1 lb. (0.45 kg)
Environmental Quality Meter With Sound
Combines an anemometer, hygrometer, thermometer, sound and light meter into a single hand-held unit.
Also, reads any type-K thermocouple probe. Results are displayed on a large dual LCD with low battery and out-of-range indications. Features touch-tone buttons, min/max, auto power off and hold functions. Comes ready to use in a soft carrying case with computer port, instructions, 6 AAA batteries, easel back, and a tripod screw. Uses optional USB Power Cable (840058), or AC Adapter (840097). N.I.S.T. Traceable Certification Report available for SOUND ONLY.
- Air Speed
- Air Temperature
- Humidity
- Light
- Sound
- Thermocouple Temperature
Dimensions: 9¾” × 2¾” × 1¼” (248 × 70 × 32 mm)
Weight: 12 oz (340 g)
Mini Environmental Quality Meter
For environmental testing anywhere. Combines an anemometer, hygrometer, thermometer, and a light meter into a single compact unit weighing only 5.3 oz (150 g). Features dual display with low battery and over range indications, touch-tone buttons, min/max, auto power off and hold functions. Comes ready to use with soft carrying case, wrist strap, instructions, and a 9V battery.
- Air Speed
- Air Temperature
- Relative Humidity
- Light
- Thermocouple Temperature
Weight: 5.3 oz (150 g)
Advanced Mini Environmental Quality Meter (12 Parameters)
These meters are light weight, tiny in size with simple, one-hand, operation. They are perfect for scientists, agricultural specialist, facilities managers, HVAC professionals, home inspectors, field technicians, health and safety personal, hazmat crews, outdoor enthusiasts, educators, and coaches … all of whom need accurate information to properly access environmental conditions and make crucial decisions.
Reads air speed in addition to the wide selection of environmental parameters detailed above. Accurately measures liquid and solid temperatures using the optional Pt 1000 penetration probe. Will sense airflow as low as 0.4 m/s with an accuracy of ±3% (4% >20 m/s). Replaceable snap-in anemometer vane is available. Features min/max, hold, a backlight and come complete with a wrist strap, carry pouch, and button cell battery providing at least 40 hours of continuous use.
- 5 year warranty, CE, RoHS
- Wind Speed Air Temperature Air Volume
- Relative Humidity (RH) Wind Chill Heat Stress Index
- Dew Point Wet Bulb PT 1000 ohm (with Optional Probe)
- Barometric Pressure Altitude Visible Light
Environmental Monitor
This single environmental instrument measures the four parameters that cause most damage to buildings, valuable objects, documents, etc: ultraviolet and visible light, humidity and temperature.
The 765 measures and displays visible light (Lux or Foot-candles), UV light (mW/M² or µW/lumen), temperature (°C or °F) and humidity (%RH). This is the world standard instrument for museums, art galleries conservators or any application requiring a controlled environment.
The 765C (with data logging) is the same as 765 with data logging capacity for over 70,000 readings of all 4 parameters. No special software is required, logged information is stored on an internal USB Flash disc and the data can be downloaded onto a PC and viewed with any spreadsheet (Excel etc). A free application (RView) is also available for download that displays the data as a zoomable graph that can be saved as an image for inclusion in documents and/or printed.
For many years it has been recognized that one of the major causes of damage to museum objects and other antiquities is the fading and rotting effect of light on the object. The most damaging part of the illumination is its ultraviolet (UV) content.
Since 1976 Littlemore Scientific (ELSEC) has been providing instruments that enable the conservator to measure the UV content of light and thereby protect valuable exhibits. Using the 765, measurements can be taken of the proportion of UV present (mW/lumen), the total amount of UV (mW/M²), the amount of visible light present as Lux or Foot-candles. Temperature can be measured in °C or °F, humidity is shown as % Relative Humidity (%RH) and dew point. The displayed units can easily be changed by the user.
Min/max values and their time of measurement are displayed for each parameter.
Anyone can take measurements straight out of the box with little, if any, reference to the instruction manual. The appropriate button is pushed depending on the measurement required and the reading is taken. The unit automatically turns off 10 seconds after the last reading unless a button is held down for over 5 seconds, this causes continuous measurements to be taken until another button is pressed. The large 8 line display enables an easy to use menu system to select the more advanced functions, change units etc.
| Visible Wavelength Range: | 400 to 700 nM (CIE response). No correction required for different light sources. |
| Visible Power Range: | 0.1 to 200,000 Lux (0.1 to 20,000 Foot-candles) |
| UV Wavelength Range: | 300 to 400 nm |
| UV Power Range: | 2 to 50,000 mW / sqm |
| UV Proportion Range: | 8 to 10,000 mW / Lumen |
| RH Sensor: | Capacitive film type |
| RH Range: | 0 to 100% RH |
UV Light Meters
UV Light Meter UVA/UVB
Accurately Measure UVA and UVB Light
UV light intensity appears on the large backlit display in either µW or mW/cm² while the small lower display simultaneously shows minimum, maximum, average and recorded data. Up to 20 data points can be recorded automatically at a variety of intervals.
Features zero point reset, hold, and indicates when the battery is low. Comes in a protective hard foam lined carrying case complete with a UV probe, tripod screw, magnetic mount and a 9V battery. Measures long and medium wave UV-A/B for applications such as forensics, chromatography, electrophoresis and dermatology.
- Measure damaging UV (ultraviolet) light in the environment and museums.
- UV degradation studies in the pharmaceutical, cosmetic, semiconductor, printing, window tinting, and other industries.
- Laboratory chromatography, electrophoresis and forensics.
- Test UV sterilization and dermatology lamps in hospitals.
- 5 Year Warranty, CE, RoHS.
Dimensions: 5½” × 1⅞” × 1⅛” (140 × 49 × 30 mm)
Weight (with probe): 8.6 oz (246 g)
Cord Length: 45 ½” (outside the wand attachment)
UV Light Meter UVC
Accurately Measure UVC Light
UV light intensity appears on the large backlit display in either µW or mW/cm² while the small lower display simultaneously shows minimum, maximum, average and recorded data. Up to 20 data points can be recorded automatically at a variety of intervals. Features zero point reset, hold, and indicates when the battery is low. Comes in a protective hard foam lined carrying case complete with a UV probe, tripod screw, magnetic mount and a 9V battery.
Measures long and medium wave UVC for applications such as forensics, chromatography, electrophoresis and dermatology.
- Measure damaging UV (ultraviolet) light in the environment and museums.
- UV degradation studies in the pharmaceutical, cosmetic, semiconductor, printing, window tinting, and other industries.
- Laboratory chromatography, electrophoresis and forensics.
- Test UV sterilization and dermatology lamps in hospitals.
- 5 Year Warranty, CE, RoHS.
Dimensions: 5½” × 1⅞” × 1⅛” (140 × 49 × 30 mm)
Weight (with probe): 8.6 oz (246 g)
Cord Length: 45 ½” (outside the wand attachment)
Environmental Monitor
This single environmental instrument measures the four parameters that cause most damage to buildings, valuable objects, documents, etc: ultraviolet and visible light, humidity and temperature.
The 765 measures and displays visible light (Lux or Foot-candles), UV light (mW/M² or µW/lumen), temperature (°C or °F) and humidity (%RH). This is the world standard instrument for museums, art galleries conservators or any application requiring a controlled environment.
The 765C (with data logging) is the same as 765 with data logging capacity for over 70,000 readings of all 4 parameters. No special software is required, logged information is stored on an internal USB Flash disc and the data can be downloaded onto a PC and viewed with any spreadsheet (Excel etc). A free application (RView) is also available for download that displays the data as a zoomable graph that can be saved as an image for inclusion in documents and/or printed.
For many years it has been recognized that one of the major causes of damage to museum objects and other antiquities is the fading and rotting effect of light on the object. The most damaging part of the illumination is its ultraviolet (UV) content.
| Visible Wavelength Range: | 400 to 700 nM (CIE response). No correction required for different light sources. |
| Visible Power Range: | 0.1 to 200,000 Lux (0.1 to 20,000 Foot-candles) |
| UV Wavelength Range: | 300 to 400 nm |
| UV Power Range: | 2 to 50,000 mW / sqm |
| UV Proportion Range: | 8 to 10,000 mW / Lumen |
| RH Sensor: | Capacitive film type |
| RH Range: | 0 to 100% RH |
Solar Power Meter
Enables precise measurement of solar radiation power for the manufacture and installation of solar panels and environmental applications.
Results appear in W/m2 or BTU/ft2 on a triple tier backlit display which shows a continually updated minimum, maximum or average reading. The display also shows the tilt angle and the probe features a compass for orientation. Manually or automatically records and recalls 20 data points. Comes in a protective foam lined carrying case complete with tripod screw, magnetic mount, 9V battery and instructions.
Weight: 7 oz (202g)
Dimensions: 5 ½” x 2” x 1” (140 x 49 x 29 mm)
| Model: | Solar Power Meter #860042 |
| Range | 0~2,000 W/m2 (0~634 BTU/ft2 – h) |
| Accuracy (at 23ºC, 60% RH) | ±10W/m2 (±3 BTU/ft2 – h) or ±5% whichever is greater |
| Resolution | 0.00~99.99 W/m2:0.01 W/m2 100.0~999.9 W/m2:0.1 W/m2 1,000~2,000 W/m2:1 W/m2 0.00~99.99 BTU/ft2 – h:0.01 BTU/ft2 – h 100.0~634.0 BTU/ft2 – h:0.1 BTU/ft2 – h |
| Angular Accuracy | Cosine corrected < 7% (angle < 60º) |
| Tilt Angle Range | 0º~90º |
| Tilt Angle Accuracy (at 23ºC, 60% RH) | ±1.2º (≤60º), Additional temperature induced error ±0.1º/ºC from 23ºC |
| Sample Time | Approx. 0.4 seconds |
Color LED Light Meter
Enables precise measurement of white and color LED illuminance, color temperature, correlated color temperature or color difference simultaneously shown on a backlit display.
Excellent for art galleries and museums, film and TV studios, lighting manufacturers, stores and designers. Meets CIE photopic spectral response and color temperature. Lux and foot candle selectable with general or LED light modes and a hold function. Comes in a protective foam lined carrying case complete with a tripod screw, magnetic mount, 9V battery and instructions. N.I.S.T. traceable certificate of compliance available (for lux and foot candles only).
- Illuminance in Lux or FC
- Color temperature and correlated color temperature
- Custom reference value of color difference
Weight: 16 oz (453g)
Dimensions: 5 ½” x 2” x 1” (140 x 49 x 29 mm)
| Model Name: | Chroma Light Meter #850011 |
| Light Source | Source Selectable |
| Measuring Function | Illuminance:Ev (lx or fcd) Color Coordinate:(x,y),(u1, v1)(CIE 1960) Correlated Color Temp:CT, ⊿uv Color Difference:(⊿Ev, ⊿x, ⊿y),(⊿Ev, ⊿u1, ⊿v1), (⊿Ev, ⊿CT,⊿u1v1)(One set of reference color) |
| Measuring Range | Ev:0~80,000 lx (0~7,432 fcd) CT:99,990 K Max. |
| Accuracy (at 25°C/77°F, 60% RH) | ±(3,000 Lx, standard illuminant A measured) ±5% + 4D x,y:±0.02 (100 lx, RGB LED Light CT:±4% |
| Resolution | Ev:1(0~9,999), 10(Over 10,000), lx; 0.1(0.0~999.9), 1(Over 1,000), fcd: CT:1(0~9,999), 10(Over 10,000), K; x,y:0.001; u1, v1:0.001 |
| Response Time | Approximately 1 second |
| Temperature Drift | Ev±(5% + 2 Digital)(3,000 lx, standard illuminant A measured) x, y:±0.008 (100 lx, RGB LED Light) |
| Humidity Drift | Ev±(3% + 2 Digital)(3,000 lx, standard illuminant A measured) x, y:±0.005 (100 lx, RGB LED Light) |
Pocket Laser Power Meter
This tiny laser power meter is less than ¾” thick and weighs less than 4 oz. (120 g).
The controls, display and sensor are all neatly contained and protected within the folding case with directions printed right inside the cover. When open, the sensor may be extended for remote use or snaps into a fixed position atop the case.
Unit features min/max, bar graph display, auto power off, and hold functions and indicates low battery and over range. Reads in mW and uW. Powered by 2 button cell batteries (included). Operating temperature is 0 to 40°C, with an operating RH of 80% non-condensing, maximum. Meter comes pre-calibrated from the factory at 633 nanometers.
Meter Dimensions: 4½” × 3″ × ¾” (114 × 76 × 19 mm)
Weight: 3.9 oz (111 g)
Probe Dimensions: 3½” x ½” x ½” (89 x 13 x 13 mm)
Cord Length: 15″ (381 mm)
| Range | Resolution | Accuracy |
| Calibrated at 633 nm but can also read any other wavelength in the 400 to 1100 nm range using a chart inside the case cover. Can calibrate directly to any other 400 to 1100 nm wavelength for special orders (minimum order of 50), with a 4 month lead time. | 0.01 uW | ±5%@calibrated wavelength 633 nm / 1 mW |
