TEKCOPLUS 2 in 1 Digital pH Temperature Meter Monitor Tester Sensor Test Kit 0~14.0pH Measure Automatic Calibration BNC Electrode Probe for Hydroponics Aquarium Water Ph/Temp Meter w/ pH Electrode sold2024 The SR-629 has 2 audio

The SR-629 has 2 audio ports input and out

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TEKCOPLUS 2 in 1 Digital pH Temperature Meter Monitor Tester Sensor Test Kit 0~14.0pH Measure Automatic Calibration BNC Electrode Probe for Hydroponics Aquarium Water Ph/Temp Meter w/ pH Electrode sold2024 The SR-629 has 2 audioTEKCOPLUS 2 in 1 Digital pH Temperature Meter Monitor Tester Sensor Test Kit 0~14. 0pH Measure Automatic Calibration BNC Electrode Probe for Hydroponics Aquarium Water Read more Read more Specifications: Measuring Range: pH 0. 00~14. 00pH Temperature: 0~55C (32~131F) Resolution: pH: 0. 01pH Temperature: 0. 1C Accuracy: pH: 0. 1pH Temperature: 1C ATC: 0~50C (32~122F)Environmental Condition: 0~50C (32~122F); Humidity 95%Power Supply: 6V DC or 4 x 1. 5V