Extech Heat Index Psychrometer 5.5 x 1.4 x 0.7 Green RH25 Digital Display

Extech RH25 Heat Index Psychrometer Monitor for Outdoor and Indoor Use

Extech Heat Index Psychrometer 5.5 x 1.4 x 0.7 Green RH25 Digital Display

Extech RH25 Heat Index Phychrometer

Extech Heat Index Psychrometer 5.5 x 1.4 x 0.7 Green RH25 Digital Display

General Tools EP8709 Calibratable Multi-Function Digital Psychrometer, Wet