...
Site: http://www.aosong.com/en/products-45.html
Price 3.5$
Sensors test exampleexamples:
Test 4 v6 Saturated NaCl solution
Test 2 v7 room RH12 low humidity
Test 1 v8b Balcony high to mid RH
Test 0 v9 balcony high humidity
...
Site: http://www.aosong.com/en/products-45.html
Price 3.5$
Sensors test exampleexamples:
Test 4 v6 Saturated NaCl solution
Test 2 v7 room RH12 low humidity
Test 1 v8b Balcony high to mid RH
Test 0 v9 balcony high humidity