Phosphine Gas Meter 0-20 ppm

Buy offer Details

Dear Sir/Madam,
I am from Saudi Arabia.
Im looking for products with the following specifications :
Specifications of the Phosphine Gas Meter (200 detectors)
1. Portable.
2. Sensitivity : At least four years.
3. Machine reading range : 0 -20 ppm. With an error rate of 0.01 ppm.
4. The time the device needs to read : 10 seconds.
5. Power source : Rechargeable battery.
6. Sound when phosphine gas is present.
7. Clear digital display.
8. A battery pack included and a battery charger