HACH HQ440D Portable Meter (pH, Conductivity, Optical Dissolved Oxygen, ORP, and ISE)
Automatic Buffer Recognition: Yes
Backlight: yes
Barometric Pressure Measurement: Automatic compensation of DO when using an LDO or LBOD probe
Conductivity Measurement Range: 0.01 µS/cm - 200.0 mS/cm
Conductivity resolution: 0.01 µS/cm - 0.1 mS/cm upon selected measuring range
Dimensions: 859 x 175 x 235 mm (3.38 x 6.88 x 9.25 in.)
Display: Detailed mode/Large mode
Measurement Method:
Probe specific programmed method settings
pH Measurement Range: 0 - 14 pH
pH Resolution: Selectable 0.001/0.01/0.1 pH
Resistivity Measurement:
2.5 Ω.cm - 49 MΩ.cm
Resistivity Resolution: 0.1
Salinity Measurement Range: 0 - 42 (ppt) (‰)
Salinity Resolution: 0.01 (ppt) (‰)
Weight: 750 g (1.65 lb) without batteries; 850 g (1.87 lb) with batteries
ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ