This pack of 100 5.5-9.0 pH indicator strips have a wide range for checking pH levels of multiple applications.
Test range: 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0
Each box contains non bleeding indicator strips complete … Continue reading
WHAT CAN SMART RING DO?
1. Health module – Remove infrared ray and adjust body function.
2. Simulate IC Cards and ID Carsd – You can use R3 as house door key, Elevator card, Parking card, Attendance machine, Payment … Continue reading