Mini Bluetooth Hygrometer

$125.00 ex. GST
$137.50 inc. GST

  • Dual Line 4 Digit LCD Display
  • Measure ambient Temperature and Humidity
  • Data hold function
  • Min/Max reading
  • Bluetooth BLE
  • Auto power off

The MT91 mini hygrometer measures relative humidity, temperature, and dew point while the modern ergonomic design with large backlit dual display makes it easy to use in any application. Relative humidity is normally expressed as a percentage, a higher percentage means the air-water is more humid. At 100% humidity, the air is saturated and at dew point. The Bluetooth connectivity allows users to transfer and share measured data to a smart phone and the app is available on both Android and IOS platforms. Other features include Min/Max record more and data hold.

SKU: MT91 Categories: ,


Function Range Resolution Accuracy
Temperature 0°C – 50°C 0.1°C ±(1.0°C)
Relative Humidity 10 – 90%RH 0.01RH ±(5% RH)
Digital Display LCD Dual display
Min Max Yes
Overrange Indication Yes
Enclosure Moulded
Low Battery Indication Yes
Battery 9V
Weight 74g
Dimensions 108 x 60 x 15mm


9V Battery
Instruction Manual


MT91 Technical Datasheet
MT91 Instruction Manual
MT915 Instruction Manual
MT915 Technical Datasheet