The 4HA9813-61 and 4HA9810-61 are supplied with the 4HA1285-61 pH/EC/TDS/temperature probe with CAL Check™ The pH, EC, TDS, and temperature sensor are housed in a single body that connects to the meter with a DIN connector.
Hanna Instruments offers a wide variety of electrodes that are designed for many different applications. The sensing material, body material, and connection type used are just some of the design considerations.
The pH electrode circuit has a built in amplifier that will reduce the effects of electrical noise on the high impedance pH measurement. Examples of sources of electrical noise include motors, ballasts, and pumps which are common in greenhouses.
The EC/TDS readings are performed by an amperometric sensor. An alternating voltage is applied to the sensor and the amount of current that passes between the two stainless steel pins is dependent upon the amount of salts (fertilizer) present. A greater amount of salt present results in an increase in conductance.
The polypropylene body houses all the sensors in a single body design and is durable. The probe is gel filled for maintenance free operation. It does not have to be refilled periodically.
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Features:
- 3 sensors in a single probe
- Gel filled maintenance free pH electrode
- Amplified pH electrode circuit reducees the effects of electrical noise on the high impedence pH Measurement
- Includes 4.01 & 7.01 Buffer (4HA7004L, 4HA7007L); Electrode Storage Solution (4HA70300L); General Purpose Cleaning Solution (4HA7061L)
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