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By combining RTR505B with various optional modules
Refill for 20 to 120 Fahrenheit Sling Psychrometer - Model #736710
and a new Wi-Fi connected option
Cable Material 15' cable with Silicone outer jacket
ACV Bandwidth
WS-9410-TWC Indoor Comfort Meter PT24L/C By combining RTR505B with variousWS 9410 The WS 9410 TWC Indoor Comfort Meter displays Indoor Humidity, Humidity Bar Graph, Indoor Temperature and Indoor Comfort Level Icon. It also can show Min and Max for Temperature and Humidity. This item is gray the picture is a bit off color. Features Indoor Humidity (%RH) Indoor Temperature (F) Wall Hanging or Free Standing MIN MAX record for temp & humidity with humidity level bar display Specifications: Indoor Humidity Range : 1% to 99%