Kedida Protable LCD Digital Water Testing Measurement Pen, CT3030 Conductivity + Temp Meter, CT6322 PH Conductivity Temp Meter Gadget 40HQ: 589 cartons * 20

40HQ: 589 cartons * 20 pcs = 11780 pcs

Mask mark (16:9

There is a o ring on the surface which is non-slip and will not easily slide

The batter does not easily flow out

Weight: about 1120g

Kedida Protable LCD Digital Water Testing Measurement Pen, CT3030 Conductivity + Temp Meter, CT6322 PH Conductivity Temp Meter Gadget 40HQ: 589 cartons * 20CT6021A 1. Range: 0. 0 ~ 14. 0PH 2. Error: 0. 1PH CT6322 1. PH meter conductivity temperature 2. Data retention function 3. Automatic temperature compensation function CT8023 1. Measurement range: 0 ~ 2400ppb 2. Measurement accuracy: + 10ppb 3. Resolution: 2ppb 4. Temperature range: 0 to 50 degrees 5. Resolution: 0. 1 degrees 6. With automatic shutdown function 7. With data lock function 8. With waterproof function 9. Product battery: LR44 BAT*4 10.