Portable pH/EC/TDS/Temperature Meter
The portable LABITEMS multi-meter is an economical, wateproof, portable meter that measures pH, conductivity (EC), total dissolved solids (TDS) and temperature (℃) with a single probe. The meter operation is simplified with dedicated buttons for measurement modes to be be displayed on the LCD and knobs for single point calibration of pH and EC/TDS. The HI9811-5 is most suitable for agricultural, greenhouse and hydroponic applications.
3 in 1 probe with pH, EC/TDS and temperature sensors
Amplified pH electrode for immunity to electrical noise including from ballasts and pumps
Large LCD with instructions
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LABITEMS Portable Multi Meter – pH / EC / TDS / Temperature
The LABITEMS Portable Multi Meter is an all-in-one handheld solution designed to measure pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), and temperature with speed and precision. Engineered for simplicity, the device features a large, user-friendly LCD display that shows real-time measurements along with intuitive on-screen guidance and battery status.
Ideal for hydroponics, agriculture, and greenhouse monitoring, this portable meter offers manual one-point calibration for both pH and EC/TDS – ensuring reliable accuracy in field or lab conditions. Calibration is quick, using trimmer adjustments at pH 7.01 and 1.41 mS/cm or 1500 ppm standards.
The meter comes with a durable polypropylene probe that combines pH, EC/TDS, and temperature sensors into a single body. This compact design is pre-amplified to reduce interference from electrical noise, such as motors and pumps, commonly found in agricultural and greenhouse environments.
Key Features:
Combined pH/EC/TDS/Temperature probe in a single unit
Pre-amplified pH sensor for enhanced noise resistance
Amperometric EC/TDS sensor for accurate salt/fertilizer level readings
Gel-filled, maintenance-free electrode with fiber junction for fast response
Water-resistant design ideal for rugged environments
Automatic Temperature Compensation for precise readings
Clear battery status indicator and tutorial prompts on display
Whether you're monitoring nutrient levels in hydroponics or maintaining pH balance in a field setup, the LABITEMS Portable Multi Meter is a compact, efficient, and reliable tool built for modern agricultural demands.
Name | Portable pH/EC/TDS/Temperature Meter – HI9811-5 |
pH Range | 0 to 14 pH |
pH Resolution | 0.1 pH |
pH Accuracy | ±0.1 pH |
pH Calibration | manual, 1-point through offset trimmer |
EC Range | 0.00 to 6000 µS/cm |
EC Resolution | 10 µS/cm |
EC Accuracy | ±2% F.S. |
EC Calibration | manual, 1-point through slope trimmer |
TDS Range | 0 to 3000 ppm (mg/L) |
TDS Resolution | 10 ppm (mg/L) |
TDS Accuracy | ±2% F.S. |
TDS Calibration | manual, 1-point through slope trimmer |
EC/TDS Temperature Compensation | automatic from 0 to 50°C (32 to 122°F) |
Temperature Correction Coefficient | β = 2% /°C |
EC to TDS Conversion Factor | 0.5 ppm (mg/L) = 1 µS/cm |
Temperature Range | 0.0 to 70.0°C |
Temperature Resolution | 0.1°C |
Temperature Accuracy | ±0.5°C |
Multi-parameter Probe | HI1285-5 combination, amplified pH/EC/TDS/temperature probe with built-in temperature sensor, 8-pin DIN connector and 1 m (3.3 in.) cable |
Battery Type/Life | 9V / approximately 150 hours of continuous use |
Environment | 0 to 50°C (32 to 122°F); RH max 100% |
Dimensions | 145 x 80 x 36 mm (5.7 x 3.1 x 1.4”) |
Weight | 230 g (8.1 oz.) |