How often does this pH meter need to be re-calibrated and/or how can I tell when it needs to be re-calibrated?

The manufacturer recommends keeping the device probe in a neutral storage solution; the protective tip case/container actually has a 'fill' line for guidance, and it is designed to hold a liquid safely when stored as indicated -- If someone uses distilled or deionized water by itself as a storage solution, the salts contained in the probe tip will dissipate and the probe will then need to be replaced--about $25, plus a fine headache trying to get it right. If you are out of storage solution keeping the probe wet somehow is better than dry--but don't store without the specialized solution for more than a day or so; these are typically $10-$13 for 100ml - 250ml size bottles on Amazon.

Can anyone confirm if this comes pre calibrated?

Mine was, the PH20 unit. Dead on, but I still did the cal to know how. If you use it for pH 8.0 or lower, the 4.00 and 7.00 solutions are perfect-no need for 10.00 test buffer solution. I am AMAZED at how bad my cheapy meters are, and how they disagree with each other and this one.

Can this be used to analyze urine?

Yes, it can tests urine with no problem. You can use the probe cap as a container for the urine.

I will be using this meter once a month. Do I need storage solution for the probe?

Storing the probe in the storage solution helps keep the probe's sensitivity and accuracy. So it's a recommended practice. While storing the probe without any solution will not damage the probe, it's just going to cause the probe to lose its sensitivity and accuracy temporarily. Store the probe in the storage solution again for about 10 minutes, the sensitivity and accuracy can be restored.

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APERAエコノミータイプpH測定器PH20ペン型pHメーターデジタルpH計アクアリウム/水槽などの水質検査に欠かせないペーハー測定器精度:±0.1ｐH/測定範囲:0~14.0ｐH酸度計

APERAエコノミータイプpH測定器PH20ペン型pHメーターデジタルpH計アクアリウム/水槽などの水質検査に欠かせないペーハー測定器精度:±0.1ｐH/測定範囲:0~14.0ｐH酸度計

Product ID: 732904565

Details

ディスプレイタイプ
デジタル
ブランド
アペラ
ユニット数
1 個
仕様準拠
NIST
付属コンポーネント
ストラップハードケース
商品のお手入れ方法
手洗いのみ

⚡±0.1 pH precision

💧IP67 waterproof & dustproof

🌡️Auto temp compensation 0-50°C

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$151.04

Duties & taxes included

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Stay ahead of the curve with precision pH monitoring!

READY OUT OF THE BOX - Includes calibration solutions, batteries, and a rugged case—start testing immediately.
RAPID 5 SECOND RESPONSE - Get reliable readings fast, perfect for busy aquarists and hydroponic pros.
USER FRIENDLY CALIBRATION - Customize with up to 3-point auto calibration for consistent, confident measurements.
DUAL DISPLAY FOR INSTANT INSIGHT - Simultaneously monitor pH and temperature on a crisp LCD—no extra gadgets needed.
PRECISION THAT PROFESSIONALS TRUST - Achieve lab-grade ±0.1 pH accuracy for flawless water quality control.

The APERA PH20 Economy pH Meter is a compact, digital pen-style tester delivering ±0.1 pH accuracy across a full 0-14 pH range. Featuring simultaneous pH and temperature display with automatic temperature compensation (0-50°C), it offers fast 5-second readings and up to 3-point calibration. Built tough with IP67 waterproof/dustproof rating and powered by 4 included AAA batteries for 2000 hours of use, it’s ideal for aquariums, hydroponics, water treatment, and environmental monitoring. Backed by a 2-year main unit and 6-month electrode warranty, it’s a reliable, ready-to-use solution for professionals and enthusiasts alike.

Specifications

ASIN	B01ENFOHN8
Amazon 売れ筋ランキング	産業・研究開発用品 - 11,912位 ( 産業・研究開発用品の売れ筋ランキングを見る ) pH計 - 20位
GTIN (Global Trade Identification Number)	00858718006339
UPC	858718006339
おすすめ度	4.0 5つ星のうち4.0 (8,601) var
お客様の年齢層	大人
カラー	レギュラーキット。
スタイル名	標準キット
スマートホーム互換性	スマートホーム非対応
バッテリー寿命	2000 Hours
ブランド名	アペラインスツルメンツ(Apera Instruments)
メーカー名	アペラインスツルメンツ(Apera Instruments)
メーカー型番	AI209
モデル番号	AI209
ユニット数	1 個
レスポンスタイム	5 秒
上位温度定格	50 摂氏
低温温度定格	32 華氏
保証内容	お買い上げ後本体二年、電極六か月
再使用可能性	充電可
動力源	バッテリー式
同梱商品	pH標準液(4.01/6.86)×各1個, 単四乾電池×4個(装着済み), ストラップ, ハードケース
品目の長さ	218 ミリメートル
商品の取り扱い説明書	手洗いのみ
商品の重量	3.9 オンス
型番	PH20
屋内屋外での使用	屋外用
特別用途食品	NIST
特殊機能	防水
表地の素材	プラスチック
表示タイプ	デジタル
電池の数	4 単4形電池(付属)

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

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APERAエコノミータイプpH測定器PH20ペン型pHメーター デジタルpH計 アクアリウム/水槽などの水質検査に欠かせないペーハー測定器 精度:±0.1ｐH/測定範囲:0~14.0ｐH酸度計

Details

Details

Description

Specifications

Common Questions

APERAエコノミータイプpH測定器PH20ペン型pHメーターデジタルpH計アクアリウム/水槽などの水質検査に欠かせないペーハー測定器精度:±0.1ｐH/測定範囲:0~14.0ｐH酸度計