on order over £99*
Sensor (for reptile UV lamp use)
Silicon Carbide (SiC) Photodiode packaged on gold plated header via gold wire bonding under UV glass window cap, hermetically sealed.
Sensor (for outdoor sun only)
Aluminum Galium Nitride (AIGaN) Photodiode with UG-11 filter and teflon diffuser cap
Proper usage of Solarmeter Ultraviolet Radiometer for Outdoor UV Index Measurement
The instrumentation used to measure UV index for the U.S. E.P.A./NWS program is directed toward the sky in a global normal (perpendicular to level ground) inclination. Therefore the Solarmeter Model 6.5 is designed to operate in the same fashion. Solar irradiance measured this way includes direct (reduced by cosine law depending on solar zenith angle) plus diffuse (diffused by the atmosphere).
This vertical (global) reading represents an average intensity value your body will experience while being active on a tennis or volleyball court, or lying flat on a blanket on the grass. If however, you are reclined in a lounge chair facing the sun perpendicular to the sun angle, you will experience a higher UV intensity, as represented by pointing the Solarmeter directly at the sun. This value will typically exceed the actual UV index number.
To obtain the UV index instantaneous value, the following instructions will provide the most consistent, accurate results:
Note that various cloud and haze conditions reduce the UV index. When partly cloudy, take readings often and average clear with cloudy readings to correlate with actual UV index. Take care in hazy or slightly overcast conditions because although the direct UV reads less than when sky is clear, the diffuse UV can be higher... as seen by pointing the meter in various directions.
Among the outdoor variables affecting UV intensity are:
By regularly using the Solarmeter you will become very informed of damaging UV levels in many and varied conditions. This knowledge, along with following the outdoor precautions mentioned above, should help enable you to avoid sun damage.
Note: Battery operation voltage is 9V down to 6.5V. Below 6.5V the LCD numbers will begin to dim, indicating the need for battery replacement. Under typical service load, the battery should last about 2 years.
<p>We believe in being upfront about our delivery costs.</p>
<li>Delivery cost is calculated at the checkout and is dependant upon your basket contents and post code.</li>
<li>We group products together so you get a reduced price.</li>
<li>When you checkout the total delivery price is shown.</li>
<li>Orders over £99 qualify for FREE delivery.</li>
<li>Orders are dispatched Monday to Friday excluding bank holidays.</li>
<li>Orders placed before 12pm will be dispatched that day</li>
<li>Orders placed after 12pm are not guaranteed to dispatched that day.</li>
<li>Frozen food will not be dispatched on a Friday unless Saturday delivery is specified.</li>
<li>Dispatch emails & tracking information are sent throughout the day.</li>
<h3>Who Will Deliver My Order?</h3>
<p>Depending on the weight/ size of your order and your postcode, you will be presented with appropriate delivery options at the checkout.</p>
<li>Royal Mail 24 - 1st class service that aims to deliver within 1 day of dispatch (not guaranteed).</li>
<li>Royal Mail 24 Tracked - 1st class service that aims to deliver within 1 day of dispatch (not guaranteed).</li>
<li>Mainland UK - next day courier with pre-12pm or pre-4pm delivery services (excluding some Scottish postal codes).</li>
<li>Saturday - aims to delivery before 12pm Saturday to mainland UK if order placed before 12pm Friday(excluding some Scottish postal codes).</li>
<li>Mainland UK - next day courier with pre-1pm or pre-6pm delivery services (excludes some Scottish postal codes).</li>
<li>Saturday - delivers Saturday to mainland UK if order placed before 12pm Friday (excluding some Scottish postal codes).</li>
<li>Some heavy items may need to be moved from your selected delivery service to a palletised delivery service with a delivery time of 1-2 working days.</li>
<h3>Offshore/ Remote UK Delivery:</h3>
<p>Orders via Royal Mail are unaffected. Orders that need to be delivered via a courier may (but not always) incur additional delivery charges if you live in one of the following post codes; AB30-56, IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-50, ZE, IM, BT & TR21-25.</p>
<p>Please place your order as normal and we will contact you before dispatching your order if necessary.</p>
<h3>Offshore Non-UK Delivery:</h3>
<p>We are not currently accepting orders from outside of the UK.</p>
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