Can this unit be used to test PH?

FROM HM DIGITAL: The COM-100 is NOT a pH meter. It measures EC (electrical conductivity), TDS (total dissolved solids) and temperature. For pH, please purchase HM Digital's PH-200. For more information, please visit www.tdsmeter.com

My meter want read over 999 or am I looking at the wrong ppm?

Select 442 scale. Your meter will read more than 999 ppm.

Any trouble measuring in mS?

FROM HM-DIGITAL: The COM-100 is a professional waterproof EC/TDS meter that has three EC-TDS conversion factors and selectable modes allowing you to measure in the µs, mS, ppm and ppt scales. For more information, please visit, www.tdsmeter.com/products/com100.html

Isn't one supposed to use calibrating and cleaning solution with this?

I clean mine with a wet Q-tip. There is a TDS calibration solution I use when I recalibrate every month.

Hydrofarm Hmdcom100防水ec Tds 温度コンボメーター

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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$204.83

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ecuador.

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Description

💧 Stay ahead in water quality testing with precision and durability!

USER FRIENDLY FEATURES - Includes data hold, quick 0.5s response time, auto-off to save battery, and a lanyard for on-the-go convenience.
ROBUST WATERPROOF DESIGN - IP67-rated housing ensures reliable performance even in wet, demanding environments—perfect for aquaculture, hydroponics, and labs.
VERSATILE SENSOR OPTIONS - Interchangeable platinum electrode sensor with 3 nonlinear EC-to-TDS conversion coefficients (KCl, 442TM, NaCl) for tailored testing.
PRECISION EC TDS MEASUREMENT - Accurately gauges water quality with 0-9990 μS EC and up to 8560 ppm TDS range for professional-grade analysis.
SMART TEMPERATURE COMPENSATION - Automatic temperature compensation (ATC) delivers consistent readings across 0-80°C, eliminating guesswork.

The Hydrofarm HMDCOM100 Waterproof EC-TDS & Temperature Combo Meter is a professional-grade digital tester designed for precise measurement of electrical conductivity, total dissolved solids, and temperature in water. Featuring a wide measurement range, IP67 waterproof housing, automatic temperature compensation, and interchangeable sensors, it is ideal for applications including aquaculture, hydroponics, wastewater management, and scientific research. Its user-centric design includes data hold, low battery indicator, and auto-off functionality, making it a reliable tool for professionals demanding accuracy and durability.

Specifications

ASIN	B0045LQFTK
Amazon 売れ筋ランキング	産業・研究開発用品 - 84,565位 ( 産業・研究開発用品の売れ筋ランキングを見る ) テスター - 827位
GTIN (Global Trade Identification Number)	00891144000007
UPC	095225177507 891144000007
おすすめ度	5つ星のうち4.2 177 レビュー
お客様の年齢層	大人
カラー	ホワイト/パープル
ブランド	HM Digital
ブランド名	HM Digital
メーカー名	HM ELECTRONICS
メーカー型番	COM-100
モデル番号	COM-100
ユニット数	1.0 個
レスポンスタイム	0.5 秒
上位温度定格	80 摂氏
付属コンポーネント	HM Digital HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter
侵入深度	1 メートル
再使用可能性	充電可
動力源	バッテリー式
同梱商品	HM Digital HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter
商品の取り扱い説明書	拭き取り
商品の重量	120 グラム
外装素材	プラスチック
対象年齢	大人
特別用途食品	UL
特徴	非接触
特殊機能	非接触
色	ホワイト/パープル
表地の素材	プラスチック
表示タイプ	Digital
解像度	0.1 degrees_celsius
電池の数	1 単5形電池

Reviews

B**M

Worth the upgrade over cheaper models

Great meter. Near instant readings, accurate, easy to calibrate and best of all, waterproof. I’ve accidentally dropped the whole meter into water, completely submerged for a few seconds with no problems.

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J**I

ممتاز

تجربتي معه جيدة

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A**S

Good quality

Good build and good quality Easy to use Good brand

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A**.

Un TDS profesional suficiente para investigación

Es un medidor TDS profesional, calibrable y con electrodos de platino recambiables. No es un juguete. Si necesitas un TDS fiable, este es suficiente hasta para una tesis de investigación. Yo lo uso en acuarios porque es calibrable y la temperatura y tds me han dado exactos, contrastados con un instrumentos de laboratorio que solicite para comparar.

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D**4

Ec 100

Parfait

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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2 months ago

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$204.83

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ecuador.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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Hydrofarm HMDCOM100防水EC-TDS＆温度コンボメーター

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Description

Specifications

Reviews

Common Questions