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Your cart is empty.The Apera Instruments EC400 Portable Conductivity/TDS Meter Kit is the most economical choice for a reliable portable conductivity meter. Equipped with Apera's BPB (Brush-Resistant Platinum Black) conductivity sensor/electrode/tester, the meter tests EC, TDS, and temperature simultaneously in a quick and accurate manner (Accuracy: ±1.0% F.S, Range: 0 to 200mS, 0 to 50°C(32 to 122°F) Auto or Manual Temperature Compensation). Intelligent Functions: Quick & Easy 1 to 3 Points Auto Calibration. The Smart Self-Diagnosis helps you conduct proper calibrations and determine the condition of your probe. Fully configurable parameter setting: solution standards, temperature unit, backlight time, auto-power off time, TDS factor, temperature coefficient, etc. The large clear LCD displays EC/Temperature simultaneously along with icons of stable readings and finished calibrations. Reliable Structure: IP57 Waterproof and Dustproof, ideal for use in harsh environments. It comes with a complete test kit including a Portable Conductivity Meter, a Conductivity Electrode, and 3 calibration solutions in a rugged carrying case. Powered by AA Batteries. CE certified. Model EC400 Conductivity Measuring Range Conductivity: 0 to 200 mS/cm include: (0.00~19.99) μS/cm; (20.0~199.9) μS/cm; (200~1999) μS/cm; (2.00~19.99) mS/cm; (20.0~199.9) mS/cm; TDS: (0 ~ 100) g/L Resolution 0.01/0.1/1 μS/cm 0.01/0.1 mS/cm Accuracy ±1.0% F.S ±1 digit Temperature Compensation 0 to 50˚C (32 to 122˚F) Auto or Manual Electrode Constant 0.1 / 1 / 10 cm-1 Temperature Measuring Range 0 to 80˚C (32 to 176˚F) Resolution 0.1˚C Accuracy ±0.5˚C±1 digit Others Power Supply AA Batteries *4 (1.5V*4) IP Rating IP57 Waterproof and Dustproof Dimensions and Weight Meter: (7.8*3.4*1.25) inches / 12 oz.; With carrying case: (14*10*3) inches/4 pounds Cable Length: 3ft
Cindy Holland-Rodriguez
2025-09-03 13:00:07
The ph400 is an accurate ph meter that comes with a nice travel case.
Crystal Tones
2025-09-02 16:10:50
I purchased this PH sensor so I could test the Ph of the water in my acid neutralization system to verify that the sensor in the system was good. This has been very helpful. It comes in a hard case and all the buffers needed for calibration. This is a top of the line pH sensor at a really great price. Highly recommended!
Customer
2025-07-17 16:57:38
Works great but the ph liquids leaked. And I wish it came with the storage solution it calls for
Matthew Kress
2025-07-03 18:13:19
This is a great meter for pH and temperature. It has been super reliable and I love the case. I did spill the solution the probe gets stored in but I’m clumsy. I did wish it had a cap while the probe is in use.
Jimmy G
2025-06-17 14:21:49
I have gone through several PH meters made by Hannah. My biggest issue with the Hannah ones are that the replacement probes are so expensive. I decided rather than replace a temperature and a ph probe at nearly $100 each I was going to simply try a new brand. It has a three point calibration and it is much faster at reading than the two Hannah's I have had. The case it came in was also very nice and easy to use the solutions while in the case to help hold up the solution bottles.Calibration is pretty easy and taking measurements is a breeze with the smiley face when it is stable. Had it a few weeks now and so far so good!
Jonna Shelton
2025-04-01 15:01:12
Out of the box I calibrated the meter with the solutions provided. The directions are a little confusing but it has pictures on the side of the directions with the buttons highlighted in the order to press them. , I followed those and boom worked like a charm. Its nice seeing the smiley face once the temp and ph have locked in. I checked it against two other meters for ph I have and the all are within range. I like seeing the exact number for checking conductivity usually use a trunion and they were both reading the same so I am happy with my meter hopefully many years of good use to come.
Matt W.
2025-02-24 16:25:24
The unit is well built, incredibly easy to use, and has a fast response time. The carrying case that it came with is handy (as well as the sample size buffer solutions). The instructions are actually really helpful as well regarding other probe usage, accuracy, cleaning, storage, maintenance, calibration, etc. My only suggestion is that the plastic guarding around the glass bulb seems a little thin, nothing has broken on my unit, but seems like it may be a possibility.
The Doc
2025-01-16 13:22:11
The first meter I ordered was faulty and did not calibrate correctly. Decided to give them a second chance instead of doing the smart thing and getting my money back.. The new meter arrived with EXACTLY the same problem.. A few weeks later I'm still awaiting a CREDIT, and I can't buy one that works until they stop holding my money hostage.. BUY AT YOUR OWN RISK. GARBAGE TECHNOLOGY.
マリン　エリア
2025-01-03 15:58:12
APERA Portable PH Meter PH400ã¯ã€åºƒå‘Šã©ãŠã‚Šå®Œç’§ã«å‹•ä½œã—ã¾ã™ã€‚説明書ã¯æ˜Žç¢ºã§ã‚ã‹ã‚Šã‚„ã™ãã€è‹±èªžã®ãƒžãƒ‹ãƒ¥ã‚¢ãƒ«ãŒç„¡æ–™ã§ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã§ãる点もéžå¸¸ã«ä¾¿åˆ©ã§ã—ãŸã€‚ã™ã§ã«ä½•åº¦ã‚‚使用ã—ã¦ã„ã¾ã™ãŒã€å¸¸ã«æ£ç¢ºãªæ¸¬å®šå€¤ã‚’æä¾›ã—ã¦ãã‚Œã¾ã™ã€‚ã¾ãŸã€ä½œã‚Šã‚‚ã—ã£ã‹ã‚Šã—ã¦ãŠã‚Šã€å®šæœŸçš„ãªä½¿ç”¨ã«ã‚‚ä¿¡é ¼ã§ãるツールã§ã™ã€‚æ£ç¢ºã§è€ä¹…性ã®ã‚ã‚‹pHメーターをãŠæŽ¢ã—ã®æ–¹ã«å¼·ããŠã™ã™ã‚ã—ã¾ã™ï¼The APERA Portable PH Meter PH400 works perfectly as advertised. The instructions were clear and easy to follow, and I appreciated that the English manual was freely available for download. I’ve used the meter many times already, and it consistently provides accurate readings. The build quality is also impressive, making it a reliable tool for regular use. Highly recommended for anyone in need of a precise and durable pH meter!
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