Extech RE300 ExStik ORP Meter
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To measure the orp, you need to order the orp probe.
I think it's a bad idea
Selected User Reviews For Extech RE300 ExStik ORP Meter
In another situation, I tried to turn on my meter after dipping it about 1/2 into water for a test and turned it back on, but it refused to "Self Check. " When the module is plugged into the stick, I discovered moisture in the compartment where the module is located. Blowing the unit out allowed it to dry for about a few hours and then it worked fine. In today's failure, the unit did not self-test and, when I called FLIR, the tech ran me through a "software reset" that did not resolve the issue. Next, I spoke to a Customer Service Representative who requested my invoice and gave me an assurance that a new unit would be sent to me soon. Having received the new item in a timely manner, I am disappointed to note that this unit is not well suited to swapping out the ORP module with the pH module on a regular basis and maintaining its You should ensure the unit is tightly assembled upon receipt, and if you require a pH meter, then you should consider purchasing one separately. I will only use this unit to check ORP and will not submerge beyond the locking nut on the module.
To verify calibration results on production equipment, we use handheld testers. These Extech stiks work great for me and I have a full set of them. The ORP is normally standardized and calibrated with one standard. This provides a fast and convenient way to spot-check the ORP at This is a very rugged terrain. There are no user manuals, but its easy to use with instructions in Chinese. The sticks in this range are highly recommended. ***Note that I have a number of Extech sticks for various measurements since I'm in the industrial water business. I have bought at least 20 Extech sticks and other brands as well. There has been just one failure to date, and it is this specific stick. My fault for not checking out, the sensor is held on by a hand nut, mine was not tightly tightened got wet on the inside used it once liked it but the children on the assembly line weren't fed or worked for 20 hours straight that day. I have been to China quite a bit, you probably don't want to hear this but it is true. Therefore, you should always check the assembly before using it, just in case the nut wasn't properly tightened. Water on the inside is not good for them.
Department of Education. T purchased the RE300 from me. Department of Education. The dry probe was attached to the unit, which was shipped. The readings provided by the unit were inconsistent and unreliable. Department of Education. I had been trying to return the item for 45 days (I was day 45 from the purchase date), so they brushed me off with the "no returns period" statement and pointed me to the manufacturer for reimbursement. A replacement probe was sent by the manufacturer after I contacted them. This probe was even less reliable than the one it replaced. As a replacement unit, it gives readings that are all over the place when sampling the same solution over and over again. The probe will return a 0mv reading after about 3 minutes in the sample if left in the sample. My contact with the manufacturer (Frank) resulted in the reply, "that's interesting. " In response to my more specific questions. The tech support person put me on voice mail after forwarding me to them. My phone call was returned almost immediately, and the lady who answered it arranged for another to be sent to me. I will adjust my rating if the 2nd replacement works. Just received the replacement for the replacement, and it is the same as the first. Float the test tube in distilled water (or tap water) for 10 minutes, turn it on, put it into the solution for testing and wait for 1 to 3 minutes for the reading to stabilize. Readings do not stabilize, and removing the probe, turning it off then back on again, and putting it back into the solution yield yet another reading that is 50 mv off from the one just before it. This unit is manufactured in China, so I'm betting that the age of the probe and the fact that it has traveled that far might be a large factor as to There may be a simple problem with it. In the meantime, I'm going to try and get a refund. It's disheartening to waste my time. I expect a probe to work when I shell out 100 bucks for it.
The meter was going to be used to show how ionized water compares to tap water when its ORP is measured. There was an excessive amount of time it took to get to the reading of ORP. There was also a lack of accuracy when it was in the negative There was only a range of minuses corresponding to pluses A few of the samples of ionized water contained In cases where the voltage was 200 and over, the Extech meter could not supply the measurements.
The company did not provide consistent baseline readings, so I emailed them. To figure things out, I would essentially need a science degree. They sent me a helpful reply, but it required me to have a science degree. I wish I would have known this before purchasing an ORP meter, as it isn't typical of ORP meters. There is an upside to that, as you can purchase additional testing tips, such as one for pH testing.
I like the way it works.
That's a pretty cool device. In addition to being compact, accurate, and reliable, it is also easy to use. I enjoy its ease of use and maintainability, as well as its relatively quick reading speeds.
A product of the highest quality is being sold here. It is common for meeters to have exposed electrodes that can be damaged very A very good job was done on the construction.
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