Testing chlorine levelRecommended chlorine level for pools and spas is 1.2 to 1.7ppm1) Position the needle to your "adjustment point"2) Holding the ET in one hand and the probes in the other

Product Name: Home Swimming Pool Tester (PH/CL2)Model Number: PC-101Place of Origin: ChinaTesting chlorine levelRecommended chlorine level for pools and spas is 1.2 to 1.7ppm1) Position the needle to

Testing chlorine levelRecommended chlorine level for pools and spas is 1.2 to 1.7ppm1) Position the needle to your "adjustment point"2) Holding the ET in one hand and the probes in the other

Features:1) Indoor temperature range: 14 to 122°F (-10 to 50°C )2) Outdoor temperature range: -58 to 158°F (-50 to 70°C )3) Temperature accuracy: 0 to 50°C (±1°C ),5

Product Name: Indoor / Outdoor ThermometerModel Number: IT-201APlace of Origin: ChinaIT-201 features:Indoor temperature range: -4° to 122°F (-20° to 50°C)Outdoor temperature range:

IT-201 features:Indoor temperature range: -4° to 122°F (-20° to 50°C)Outdoor temperature range: -58° to 158° (-50° to 70°C)Temperature accuracy: 0°C to 50&

Product Name: Infrared ThermometerModel Number: IR-101Place of Origin: ChinaFeatures:1) Easy to use, just aim the target with a laser point, and press thebutton2) Temperature reading appears within ha

Features:1) Easy to use, just aim the target with a laser point, and press thebutton2) Temperature reading appears within half a second and remains onscreen for 7 seconds3) Large LCD screen shows read

Features:1) Two line LC D display2) Calendar / hour alarm / daily alarm3) 12/24 hours exchange4) °C / °F exchange5) Comparative humidity and compatibility display6) Max/Min temperature and h