ISY IWS 3101 vs ISY IWS 5101

Comparison of IWS 3101, IWS 5101

21 specifications	A ISY IWS 3101View product	B ISY IWS 5101View product
Featuresidentical
Product colour	Silver	Silver
Measuring functionsKnown for one	—Unknown — not stated by the source	Indoor hygrometer, Indoor thermometer, Outdoor hygrometer, Outdoor thermometer
Measuring functions graphic displayKnown for one	—Unknown — not stated by the source	Yes
Measuring functions trend displayKnown for one	—Unknown — not stated by the source	Hygrometer, Thermometer
Clock function	Yes	Yes
Alarm functionKnown for one	—Unknown — not stated by the source	Yes
Weather station extremum dataKnown for one	—Unknown — not stated by the source	Hygrometer, Thermometer
Weather forecastKnown for one	—Unknown — not stated by the source	Yes
Alarm clockKnown for one	—Unknown — not stated by the source	Yes
Clock/Date displayKnown for one	—Unknown — not stated by the source	Yes
DCF radio clockKnown for one	—Unknown — not stated by the source	Yes
Min/Max temperature memory	Yes	Yes
Temperature measurement units	F, °C	F, °C
Week day indicationKnown for one	—Unknown — not stated by the source	Yes
Displayidentical
Built-in displayKnown for one	—Unknown — not stated by the source	Yes
Display type	LCD	LCD
Backlight displayKnown for one	—Unknown — not stated by the source	Yes
Poweridentical
Power source	Battery	Battery
Battery type	AAA	AAA
Batteryidentical
Battery technologyKnown for one	—Unknown — not stated by the source	Alkaline
Packaging contentidentical
ManualKnown for one	Yes	—Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.