Solarmeter® Model 6.5R Reptile UV Index Meter

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$249.00

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Solarmeter's new Model 6.5R Reptile UV Index Meter updates our legendary original Model 6.5 UV Index Meter with attractive, informative graphics specifically designed for reptile husbandry. Many scientists and breeders worldwide rely on the original Model 6.5 UV Index Meter, so the new Model 6.5R is unchanged operationally or in terms of specifications from the original. We just made this meter easier for reptile owners to use by updating the graphics with the latest scientific research about proper UV dosages for reptiles. Specifically, the Ferguson Zone chart at the top of the meter provides the user with an instant, accurate reference for the meter's UVI readout.

Meter Operation

To operate your Solarmeter, aim the sensor window located on the top panel of the meter directly at a UV source. Press and hold the push-button switch on the face of the meter. For best results take note of the distance the reading was taken from the UV source in order to ensure repeatable results. Battery operation voltage is viable from 9V down to 6.5V. Below 6.5V, the numbers on the LCD display will begin to dim, indicating the need for battery replacement. Under typical service load, a standard 9V battery will last approximately 2 years.

Proper Usage of Solarmeter® Ultraviolet Radiometer

Wear eye protection when checking UV lamps (Glasses that provide wrap around protection are ideal). Allow lamps to warm up prior to taking readings (at least 15 minutes).


SOLARMETER MODEL 6.5R UVI READOUT

Ferguson ZoneSpecies Include:Suggested UVB

Zone 1:
Crepuscular or Shade Dweller, Thermal Conformer

Crested Gecko
Leopard Gecko
Tokay Gecko
Burmese Python
Green Tree Python
Milk Snake
Reticulated Python

Shade Method:
Gradient UVI 0-0.7

Intermediate between Zones 1 and 2

Fiji Branded Iguana
Corn Snake
Carpet Python

Shade Method:
Gradient UVI 0-0.7

Zone 2:
Partial Sun / Occasional Basker, Thermoregulator

Australian Water Dragon
Emerald Tree Monitor
Green Anole
Monkey-Tailed Skink
Pygmy Chameleon
Ornate Box Turtle
Red Foot Tortoise
Boa Constrictor
Red-Tailed Ratsnake
Garter Snake
Western Hognose Snake

Shade Method:
Gradient UVI 0-1.0

or

Sunbeam Method:
UVI Maximum 1.1-3.0 in Basking Zone

Intermediate between Zones 2 and 3

Blue-Tongued Skink
Chinese Water Dragon
Panther Chameleon
Common Musk Turtle

Sunbeam Method:
UVI Maximum 1.1-3.0 in Basking Zone

Zone 3:
Open or Partial Sun Basker, Thermoregulator

Black-and-White Tegu
Frilled Lizard
Standing’s Day Gecko
Yemen Chameleon
Indian Star Tortoise
Leopard Tortoise
Spotted Turtle
Diamond Python

Sunbeam Method:
UVI Maximum 2.9-7.4 in Basking Zone

Intermediate between Zones 3 and 4

Bearded Dragon
Bosc or Savannah Monitor
Green Iguana
Painted Turtle
Red Eared Slider
Sulcata or African Spurred Tortoise

Sunbeam Method:
UVI Maximum 2.9-7.4 in Basking Zone

Zone 4:
Mid-Day Sun Basker, Thermoregulator

Chuckwalla
Uromastyx
Rhinoceros Iguana
Texas Horned Lizard

Sunbeam Method:
UVI Maximum 4.5-8.0 in Basking Zone

The above chart is an abbreviated version from the January 2016 Journal of Zoo and Aquarium Research, “How much UV-B does my reptile need? The UV-Tool, a guide to the selection of UV lighting for reptiles and amphibians in captivity” by Dr. Frances Baines , Joe Chattell, James Dale, Dan Garrick, Iri Gill, Matt Goetz, Tim Skelton, and Matt Swatman.

 

Note: Data is shown in two basic sets of values with two ways of providing UV:  “Shade Method” for Zones 1 and 2, the shade-dwelling species. (These are given low-level UVB across a wide area of the vivarium with a gradient to zero in deep shade, as they don’t generally bask in bright hot patches of sunlight). “Sunbeam Method” is for Zones 3 and 4, which are species that bask in sunlight. (These are given higher UVB, but limited to the basking zone in a much smaller part of the vivarium, like “a patch of sunlight” under a lamp. Vivarium should still have a gradient to zero in deep shade).

Model 6.5R Reptile UV Index Meter
Model 6.5R
Irradiation Range 0-199.9 UV Index
Response 280-400 nm Diffey Erythemal Action Spectrum (closesly matches Vitamin-D Action Spectrum)
Resolution 0.1 UV Index
Conversion Rate 3.0 Readings/Sec
Display 3.5 Digit LCD
Digit Size 0.4 (in) / 10.2 (mm) high
Operational Temperature 32°F to 90°F / 0°C to 37.8°C
Operational Humidity 5% to 80% RH
Accuracy ±10% REF.NIST
Dimensions
4.2L x 2.4W x 0.9D (in) / 106.7L x 61W x 22.9D (mm)
Weight 4.5 (oz) / 128 (g) Including Battery
Power Source 9-Volt DC Battery
Lens UV Glass
Diffuser Teflon
Agency Approval CE Mark

Spectral Response Graphics


FAQS

What is a Ferguson Zone?
Using the original Solarmeter® Model 6.5 UV Index Meter, a team of herpetologists led by Professor Gary Ferguson of Texas Christian University published research in 2010, which summarized the daily UV exposure of 15 species of reptiles that were studied in the wild. These species were grouped into four zones, aka "Ferguson Zones," according to their daily sun exposure requirements. In 2012, the British and Irish Association of Zoos and Aquaria (BIAZA) built on Ferguson's research to produce a document allocating Ferguson Zones to 254 species of reptiles and amphibians. You can download this report here. Today, ongoing research continues to apply Ferguson Zones to even more species.

Which Meter Do I Need For My Reptile – Model 6.5R Reptile UV Index Meter or the Model 6.2R Reptile UVB Lamp Meter?
Ideally, reptile keepers will want both meters. Because the Model 6.5R Reptile UV Index Meter's erythemally weighted action spectrum is extremely close to the action spectrum for vitamin D3 synthesis, it is the ideal tool to determine proper UV dose for your reptile, per the appropriate Ferguson Zone for the species. In fact, the 6.5R's readings can function as a proxy for the vitamin D3-producing ability of the habitat's light source. Meanwhile, the Model 6.2R Reptile UVB Lamp Meter is ideally suited to determine if UVB lamps are performing to manufacturer's specifications, gauge intensity, and measure aging over time. So, in short, use the Model 6.5R to determine proper UV dose for the animal, and use the Model 6.2R to determine UVB lamp output.


References

An In-Depth Look At UV Light And Its Proper Use With Reptiles by Dr. Frances M. Baines - Reptiles Magazine January / February 2017

How much UV-B does my reptile need? The UV-Tool - A Guide to the Selection of UV Lighting for Reptiles and Amphibians In Captivity - Journal of Zoo and Aquarium Research, January 2016

Reptile Lighting Information by Dr. Frances M. BainesReptiles Magazine 2009


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