Is the probe submersible? I want to measure DO in the lower portions on a pond without having to try to capture samples.

The probe is submersible but not the top controller part. I spliced in a piece of 4 conductor cable to get it deeper.

how long is the probe ?

The probe is five inches in length.

Does this work in the mountains at 5,000 feet elevation?

The manual says it does not compensate for altitude/pressure. Only temperature. Its unclear if it would work properly at 5,000 feet.

Does it come with a calibration solution or, how do you make anaerobic water?

I bought this thing recently for transporting fish/trout. Couple things to note I have found. No Calibration solution. I find it odd that the way you calibrate is against outside air. You calibrate it in air or zero it out against air. Then use it. I also found that it needs to be calibrated every use. I may try calibrating in a solution of saturated C02 ( in other words take all the oxygen out ) but I have no way of knowing just exactly when that may be. The temperature ( and if indeed the DO is accurate ) takes over a minute to be the same accuracy as analog pool thermometer. IDK if I ultimately trust this thing based on some things here. Does not make sense readings of 3mg/L in water supporting trout, when they need 6+ or they'd be jumping out of water and dying. So, not convinced the thing can be calibrated correctly in order to read correctly. Hope this answers any questions.

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Dissolved Oxygen Meter with Electrode Filling Fluid

Product ID: 261169918

Details

Brand
RCYAGO
Item dimensions L x W x H
6.1 x 0.01 x
Lower Temperature Rating
0.1 °C
Material
Plastic
Style
Digital Oxygen

🌊0.0-40.0 mg/L range

📏Polarographic sensor tech

🔋Auto power-off feature

Description

💧 Dive into precision with every measurement!

SMART ENERGY SAVING - Auto power-off after 8 minutes of inactivity to extend battery life.
USER FRIENDLY DESIGN - Digital display with backlight ensures easy data reading, even in low light.
PRECISION MEASUREMENT - Accurate dissolved oxygen and temperature readings for optimal aquatic health.
VERSATILE APPLICATIONS - Perfect for aquariums, pools, and scientific research—wherever water quality matters.
HASSLE FREE CALIBRATION - No need to open the electrode cover for calibration—just dip and measure!

The Dissolved Oxygen Meter is a cutting-edge instrument designed for accurate measurement of dissolved oxygen levels and temperature in various aquatic environments. With a measurement range of 0.0-40.0 mg/L, it features a polarographic sensor and a user-friendly digital display. Ideal for aquariums, pools, and scientific research, this meter ensures reliable readings with easy calibration and energy-saving features.

Specifications

ASIN	B08NFYY4L8
Best Sellers Rank	#892,260 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #97 in Dissolved Oxygen Meters & Accessories
Brand Name	RCYAGO
Customer Reviews	4.0 4.0 out of 5 stars (129)
Included Components	6 Probe Covers, 1 Electrode Filling Solution, 1 Anaerobic Water Powder, 1 Manual
Item Dimensions	6.1 x 0.01 x 0.01 inches
Item Length	6.1 inches
Lower Temperature Rating	0.1 °C
Manufacturer	RCYAGO
Material Type	Plastic
Measurement Accuracy	±1.5%F.S
Model	DO9100
Number of Items	1
Part Number	DO9100
Response Time	45 seconds
Style Name	Digital Dissolved Oxygen Meter
UPC	784104073213
Unit Count	1 Count
Upper Temperature Rating	40 °C

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