Digital Dissolved Oxygen Meter

Digital Dissolved Oxygen Meter
Portable Dissolved Oxygen Pen Water Quality Tester Dissolved Oxygen Detector
Pen-type intelligent dissolved oxygen analyzer (hereinafter referred to as the instrument) is mainly designed to
facilitate the user to carry on-site operation.
The instrument can be divided into two parts: sensor and electronic unit. The sensor uses a polarographic film-type dissolved
oxygen electrode.
The electronic unit is composed of high integrated circuits. The instrument uses a dot-matrix liquid crystal display to display
dissolved oxygen values and temperatures.

Specifications：
Model Number: HD-70A/JPB-70A
Type: Portable Dissolved Oxygen
Meter Measurement range: 0.0 to 20.0 mg/L
Accuracy: 0.3mg/L
Resolution: 0.1
Residual current: not more than 0.15mg/L
Response time: no more than 30s (90% response at 20°C)
Automatic temperature compensation range: (0 ~ 40) °C
Measuring range:
1. Dissolved oxygen: (0.0~20.0)mg/L
2. Temperature: (0 ~ 40) °C
Basic error:
1. Dissolved oxygen: ±0.3mg/L
2. Temperature: ±1°C

Features： 
LCD
Automatic temperature compensation, fast response time
Portable, easy to carry
With our factory dissolved oxygen electrode(polarized film type)
Power supply: 4*1.5V button batteries(NOT INCLUDE)
Dimensions (mm): Φ40*185 (without electrodes)
Weight: 88g
Instrument keyboard description: Key Function (switch) power on and off.
CAL calibration key (long press 5 seconds to enter the calibration interface)
HOLD lock/hold key, Fahrenheit/Celsius temperature conversion key.