Datasheet
PRODUCT DATASHEETPRODUCT DATASHEET
SP505 Pocket
Solar Power Light Meter
Features
•  Measure solar power light level in watts per square 
meter (W/m
2
) or BTU (ft
2
*h)
•  Built-in solar light sensor with precision photo diode
•  Zero function 
•  Data Hold freezes current reading on display
•  Tripod mount (optional TR100 Tripod sold separately)
•  Complete with two AAA batteries and a pouch
Specifications Range Max Resolution Basic Accuracy
Measuring Ranges 3999 W/m
2
1 W/m
2
±10 W/m
2
  634 BTU/(ft
2
*h) 1 BTU/(ft
2
*h) ±3 BTU (ft
2
*h) or ±5% whichever is greater
Spectral Response 400 nm to 1100 nm
Dimensions 4.3 x 1.9 x 1" (108 x 48 x 23mm)
Weight 2.8oz (80g)
Ordering 
SP505 ............... Pocket Solar Power Light Meter
TR100 ............... Tripod
www.extech.com
Specifications subject to change without notice. Copyright © 2017 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form. 
Rev. 6/30/17
UPC Code: 793950485057
Extech’s SP505 measures solar power level from outdoor 
sunlight to determine the best location of solar panel and solar 
water heater installations. It is also used indoors by window 
manufacturers, automotive industry, and remodeling home 
owners to check the level of solar radiation transmission through 
various glass thicknesses and degrees of tinting to use for 
window installations. Convenient pocket-sized meter with built-in 
precision solar light sensor is easy-to-use wherever you go. 

