Industrial pH Meter/ Sensor MODBUS-RTU RS485 & 0~2V Analog Voltage (S-pH-01A) V2.0
This industrial-grade MODBUS-RTU RS485 pH meter/sensor features ATC, low-power-consumption, high integration. It can be widely used in monitoring pH levels in soil and water applications such as agriculture, gardening, horticulture, swimming pools, scientific experiments, and other environmental monitoring scenarios.
Version 1 of this pH sensor supports RS485 protocol and 4~20mA analog current, which is now retired, and replaced by this current one: Version 2, supporting RS485 protocol and 0~2V analog voltage.
Please send an email to sensecap[at]seeed[dot]cc to request any technical support for this product.
High performance: high accuracy, fast response, good repeatability
Universal protocol: MODBUS RS-485 or 4~20mA current
Wide-range power supply: 3.6V ~ 30V
Robustness: suitable to be immersed in soil or water for a long time
Maintainance-Free: advanced junction design, no clogging
Durable: anti-corrosion, automatic temperature compensation
User-friendly: Easy to install and integrate
A pH meter measures the hydrogen-ion activity in water-based solutions, indicating its acidity or basicity expressed as pH. (Wikipedia: pH Meter). pH level is an important indicator in many scenarios, especially in monitoring soil conditions and water quality. A pH sensor is widely used in farming, gardening, hydroponics, aquaponics, swimming pools and spas, sewage treatment, education, environmental monitoring, and many other applications.
|Range||0 ~ 14pH|
|Accuracy||± 0.1 pH|
|Output Interface||Analog Voltage 0-2V (Output resistance ~0ohm)||RS-485 MODBUS-RTU|
|Power Consumption||[email protected] DC||[email protected] DC|
|Start-up time||< 2 seconds|
High impedance and isolated input;
Range: 0 - 14PH,
Accuracy: +/- 0.1PH;
Can be used for a solution or semi-solid substrate
Range: - 40~80°C,
|Operating Temperature||-40℃ ~ 85℃|
Electrode: 3/4"NPT screw threads;
Transmitter: Mounting hole
Power and Signal Cable:2 meters (Customizable)
Electrode Cable: 5 meters
Electrode: Width*Diameter 160*30mm; 3/4"NPT screw threads
Agriculture: greenhouse, aquaponics, hydroponics, and crop Plantation, etc.
Animal Husbandry: pasture, grassland, and meadow
Forestry and Horticulture
Swimming Pools and Spas
Other environmental monitoring scenarios
Please refer to the user manual for more details about the wiring diagram.