Gravity: Analog Spear Tip pH Sensor / Meter Kit
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Gravity: Analog Spear Tip pH Sensor / Meter Kit
The Gravity: Analog Spear Tip pH Sensor / Meter Kit is a specialized solution designed to directly measure pH levels in semisolid materials such as wet soil and various food items. Equipped with a spear-like stainless steel protective shield, this sensor allows direct insertion into soft samples without damaging the electrode, which is not possible with standard pH probes.
This kit is ideal for agricultural applications like soil testing as well as food quality assessment, including pH measurement in fruits, vegetables, and meats. For instance, determining the pH of meat can be a reliable indicator of freshness.
The sensor is Arduino compatible, and with the included signal transmitter board, users can quickly set up a functional pH meter system for real-time testing. This tool is perfect for educational, experimental, and light-duty field applications.
Key Features
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Spear tip pH probe for semisolid materials (e.g., wet soil, meat, fruits)
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Stainless steel protective shell with sharp tip for direct insertion
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Arduino-compatible plug-and-play design
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Gravity interface and BNC connector for easy integration
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Accurate analog output with wide pH detection range
Applications
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Soil pH testing in agriculture and gardening
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Food freshness detection in research and education
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Quick pH checks in semi-solid samples like produce and compost
Technical Specifications
Spear Tip pH Probe
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Measuring Range: 0 ~ 10 pH
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Accuracy: ±0.1 pH
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Response Time: ≤2 minutes (in buffer solution)
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Operating Temperature: 5 ~ 60°C
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Salt Bridge Material: Poly Tetra Fluoro Ethylene (PTFE)
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Shell Material: Polyoxymethylene (POM)
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Wiring Connector: BNC
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Cable Length: 850mm (BNC included)
Signal Transmitter Board
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Input Voltage: +5.00V
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Output Signal: 0 ~ 4.0V
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Accuracy: < ±0.2 pH @ 25°C
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Probe Connector: BNC
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Module Connector: Gravity PH2.0-3Pin
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Dimensions: 43mm × 32mm (1.69 × 1.26 in)
Package Includes
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1x Spear Tip pH Probe
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1x Stainless Steel Spear Tip Shell
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1x Signal Transmitter Board
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1x Gravity 3-Pin Analog Cable
Important Notes
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Not suitable for hard solids, oily, high-viscosity, or particle-rich samples.
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Do not use for non-aqueous titration or prolonged immersion.
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Clean the probe thoroughly after each use.
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Keep the BNC connector and signal board dry and clean.
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The protective liquid in the probe cap may crystallize over time; this is normal and does not affect performance.
1. General Shipping Information
- We provide premium shipping methods with a tracking number for each order.
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Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
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Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
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We can ship all in-stock orders within 1 business day as your order has been confirmed.
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All items are inspected before dispatch and are carefully hand-packed.
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With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.
2. Shipping Options for Germany and EU* countries
(For Products in Munich Warehouse)
2.1 Shipping options for an order value of up to €30 inside Germany or €50 inside the EU*
Shipping Options:
| Shipping Options | Germany | EU* |
|---|---|---|
|
Deutsche Post |
€3.5 Arrive in 3-4 Business Days |
€6 Arrive in 5-9 Business Days |
|
DHL Paket |
€6 Arrive in 2-3 Business Days |
€15 Arrive in 3-7 Business Days |
|
DHL Express |
€14 Arrive in 1-2 Business Day |
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2.2 Free shipping options for an order value of above €30 inside Germany or €50 inside the EU*:
| Free Shipping Options | Germany | EU* |
|---|---|---|
|
Deutsche Post |
Free Above €30 | Free Above €50 |
|
DHL Paket |
+ €2 for Above €30 / Free Above €60 | + €8 for Above €50 / Free Above €80 |
|
DHL Express |
+ €10 for Above €30 | + €60 for Above €50 |
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Certain EU Countries are not included in our EU Zone definition: United Kingdom (excluding Ireland), Switzerland, Liechtenstein, Vatican City, Albania, Belarus, Norway, Ukraine, and Iceland. For the above countries, the International Shipping Rule applies.
2.3 Shipping Options for International Countries:
(via Deutsche Post or YunExpress)
| Order Amount | International |
|---|---|
| €0 - €15 | €8 |
| €15 - €30 | €7 |
| €30 - €50 | €6 |
| €50 and above | €4 |
Important Notice:
- Please verify the inventory location on the product page before placing your order to confirm delivery timeframes.
- For products in the Shenzhen warehouse, we will typically first ship the products from the Shenzhen warehouse to our Munich warehouse, which will take around 1.5 weeks. After we receive the shipment in Munich, we will send the items to you. We will only arrange YunExpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50.
- If you place an order with products from both Munich and Shenzhen warehouses, we will first ship the products in the Munich warehouse, and then send the remaining products to you when we receive them from Shenzhen.
3. International Warehouse
3.1 German Warehouse
3.2 Chinese Warehouse
4. Customs and Taxes
4.1 How are customs handled by OpenELAB for import or export?
4.2 How is VAT charged when the Customer places an order from OpenELAB?
4.3 What kind of fee will be charged except VAT?
Effective Date: March 27, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.
1. Warranty Disclaimer
Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.
2. Warranty Policy
Warranty Period
The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
- Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
- Unauthorized repair attempts by the customer.
- The product is not defective but has been opened and is non-returnable by policy.
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- Return for Refund: Within 15 days of receipt (unopened).
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