Dwyer Psychrometer & slide charts Type
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![Dwyer A-532 Air velocity calculator slide chart. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/a-525_large_903612c7-60c3-41f4-9738-6edc7382dcbd_medium.gif?v=1688870585)
A-532 | Air velocity calculator slide chart. | Dwyer
Brand: Dwyer
SKU: A-532
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![Dwyer A-530 Psychrometric slide chart. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a-525_large_f52563e3-be92-44ec-93db-d2a5bbb10470_medium.gif?v=1712856877)
A-530 | Psychrometric slide chart. | Dwyer (OBSOLETE)
Brand: Dwyer
SKU: A-530
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![Dwyer A-531 Oil burner efficiency slide chart. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/a-525_large_9136d797-10d3-4e3a-866d-6ed0fe17e4e0_medium.gif?v=1688833596)
A-531 | Oil burner efficiency slide chart. | Dwyer
Brand: Dwyer
SKU: A-531
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![Dwyer A-503 Dial thermometer | 200 to 1000°F and 100 to 540°C. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/a-525_large_2240c339-8082-4ca8-83b0-b0d373fe6dd2_medium.gif?v=1688874246)
A-503 | Dial thermometer | 200 to 1000°F and 100 to 540°C. | Dwyer
Brand: Dwyer
SKU: A-503
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![Dwyer A-536 Metric air velocity calculator slide chart. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/a-525_large_3b347ad6-9f2d-487d-aa07-94e48f177819_medium.gif?v=1688834057)
A-536 | Metric air velocity calculator slide chart. | Dwyer
Brand: Dwyer
SKU: A-536
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![Dwyer A-502 Dial thermometer | 0 to 250°F and -20 to 120°C. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a-525_large_4afe50c7-de8d-4d76-8068-1b3e9a92fdfd_medium.gif?v=1712856886)
A-502 | Dial thermometer | 0 to 250°F and -20 to 120°C. | Dwyer (OBSOLETE)
Brand: Dwyer
SKU: A-502
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![Dwyer A-527 Replacement wick for psychrometer. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/a-525_large_73c9c1de-072e-44ee-93bc-512d4f0886b0_medium.gif?v=1688868866)
A-527 | Replacement wick for psychrometer. | Dwyer
Brand: Dwyer
SKU: A-527
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