Description

• Introduction Smart Sensor AR991 Grain Moisture Meter

  The Smart Sensor AR991 Grain Moisture Meter gives farmers, grain traders, and warehouse managers a fast, reliable way to check moisture levels in 14 major grain varieties. With its dual-rod steel probe and resistance-based sensing technology, the AR991 delivers readings in seconds — helping you protect crop quality, prevent spoilage, and make better buying or storage decisions right on the field or at the silo.

   

  astzbd brings you this genuine Smart Sensor AR991 with full warranty support and dedicated after-sales service. Whether you manage rice paddies in Sylhet, run a grain depot in Chattogram, or purchase wheat in bulk at a local bazar, this meter becomes your most trusted pocket tool for every transaction.

  Specifications Smart Sensor AR991 Grain Moisture Meter

  Brand	SMART SENSOR
  Model	AR991
  Material	ABS Plastic
  Color	Black + Yellow
  Display	LCD with Backlight
  Measurement Principle	Resistance Method
  Resolution	0.1%
  Grains Supported	14 varieties (see list below)
  Paddy / Wheat	11% – 55%
  Corn / Feed	11.5% – 50%
  Barley / Rice / Sorghum / Watermelon Seed	11% – 50%
  Rapeseed / Sesame / Soymeal / Seed Cotton	7.5% – 44%
  Soybean / Peanut	10% – 50%
  Accuracy	±0.5% (typical)
  Operating Temperature	-10°C to 50°C
  Operating Humidity	< 95% RH (non-condensing)
  Auto Power Off	15 minutes (no operation)
  Memory Function	Yes (setting memory)
  Data Hold	Yes
  Deviation Adjustment	Yes
  Alarm Setting	Yes
  Low Battery Indicator	Yes
  Voice Readout	Yes (built-in speaker)
  Power Supply	4 × 1.5V AA Batteries (not included)
  Product Dimensions	425 × 70 × 35 mm (16.7 × 2.9 × 1.4 in)
  Weight	Approx. 333 g (11.7 oz)
  Package Contents	1× Moisture Meter, 1× User Manual

   

• Key Features Smart Sensor AR991 Grain Moisture Meter

  • Measures moisture in 14 grain types: Paddy, Wheat, Corn, Barley, Rice, Sorghum, Feed, Rapeseed, Seed Melon, Sesame, Soymeal, Soybean, Peanut, Seed Cotton
  • High-precision dual-rod stainless steel probe ensures stable, repeatable results
  • LCD backlight display allows clear reading in dark warehouses or early-morning field conditions
  • Built-in voice speaker announces the measured value aloud — no need to look at the screen
  • 1% resolution with a wide moisture range (7.5% – 55% depending on grain type)
  • Data hold and setting memory functions retain your last reading and configuration
  • Deviation adjustment and alarm settings let you customize alerts for your target moisture level
  • Auto power-off after 15 minutes of inactivity saves battery life
  • Protective plastic cover guards the probe tip from damage between measurements
  • Ergonomic non-slip grip handle fits comfortably in the hand for extended field use
  • Low battery indicator alerts you before the device loses power mid-task
  • Compact and lightweight (approx. 333 g) — easy to carry anywhere

 

Applications Smart Sensor AR991 Grain Moisture Meter

Grain Procurement Check moisture before purchase to negotiate fair prices and reject wet or substandard grain lots.

Storage & Warehousing Monitor grain moisture during storage to prevent fungal growth, mold, and post-harvest losses.

Farm Harvesting Decide the right time to harvest by confirming that grains reach the optimal dryness level.

Rice Milling & Processing Test incoming paddy moisture before milling to protect machinery and ensure output quality.

Feed & Fodder Industry Measure moisture in animal feed and oilseed meal to maintain nutritional value and shelf life.

Government & NGO Food Programs Verify grain quality during food aid distribution and government procurement audits.

 

Who Uses This Smart Sensor AR991 Grain Moisture Meter

• Rice & Wheat Farmers Test harvest moisture in the field before bagging or selling to traders.
• Grain Traders & Wholesalers Verify moisture at the point of purchase to avoid buying over-wet grain.
• Warehouse & Silo Managers Monitor stored grain regularly to prevent losses from heat and humidity.
• Rice Mill Operators Check incoming paddy before milling to protect equipment and maximize yield.
• Agricultural Officers Conduct field surveys and enforce grain quality standards at the district level.
• Food Processing Companies Maintain raw material quality control at the production facility intake stage.
• NGOs & Development Workers Ensure proper grain quality during food distribution programs in rural areas.

 

 

Frequently Asked Questions Smart Sensor AR991 Grain Moisture Meter

Q1. How does the Smart Sensor AR991 measure grain moisture?

The AR991 uses a resistance measurement method. You insert the dual-rod steel probe into the grain sample, and the device measures the electrical resistance between the two rods. Dry grain has higher resistance and wet grain has lower resistance. The meter converts this reading into a moisture percentage and shows it on the LCD screen instantly.

Q2. Which grains can I test with the AR991?

The AR991 supports 14 grain varieties: Paddy, Wheat, Corn, Barley, Rice, Sorghum, Animal Feed, Rapeseed, Watermelon Seed, Sesame, Soybean Meal, Soybean, Peanut, and Seed Cotton. You select the grain type using the “Varieties” key before measuring.

Q3. Does the AR991 come with batteries?

No, the meter requires 4 × 1.5V AA batteries which are not included in the package. You need to purchase them separately before the first use.

Q4. What is the measurement accuracy of the AR991?

The resolution is 0.1%, meaning the meter detects moisture changes as small as 0.1%. Typical accuracy is ±0.5% under standard operating conditions. Environmental factors like extreme temperature or humidity can affect readings, but the operating range covers -10°C to 50°C.

Q5. Can I use the AR991 in a dark storage room or at night?

Yes. The AR991 has an LCD backlight display that makes the screen clearly readable in low-light conditions. The built-in speaker also announces the reading aloud, so you can take measurements in the dark without needing to look at the screen at all.

Q6. How do I know if the battery is running low?

The AR991 shows a low battery indicator on the LCD screen when the battery level drops. This alerts you before the meter loses power, so you can replace batteries before heading into the field.

 

Why buy from astzbd Smart Sensor AR991 Grain Moisture Meter

• astzbd sells only 100% genuine Smart Sensor products — every AR991 unit comes with an authentic product guarantee and full warranty coverage.
• Our local warehouse in Bangladesh means you receive your order quickly without long international shipping waits or customs delays.
• ASTZBD provides dedicated Bangla-language customer support — our team answers your product questions and guides you through setup in your own language.
• We offer after-sales technical support for every instrument we sell — if your AR991 develops a fault within the warranty period, we handle the resolution for you.
• ASTZBD issues official purchase receipts and VAT-compliant invoices — essential for business buyers, government procurement, and NGO sourcing requirements.
• Our pricing stays transparent and competitive — you always see the full price upfront with no hidden delivery or handling surcharges.

Thousands of customers across Bangladesh — from individual farmers to large agro-processing companies — trust ASTZBD as their go-to source for precision instruments