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Under $20 Flow Meters & Controllers

Shop the best prices on 2,027 great value under $20 flow meters & controllers. Shopping for flow meters & controllers is easy with Fruugo, with SALE discounts, offers and savings on Ydcy, Ibuyke, Pingyaoxianouyuandianzishangwuyouxiangongsi and more. Buy flow meters & controllers online safely with Fruugo, with secure payment and fast shipping to New Zealand.

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1 - 32 of 2,027
Water Flow Sensor RV -Water Heater with Installation Accessories
$12.95 Save $56.05 RRP: $69.00
Portable Spirometer Peak Flow Meter Meter Expiratory Flow For Lung Asthma Detector Breath Function M
$13.95 Save $13.00 RRP: $26.95
2025 Portable Peak Flow Meter for Asthma & Lung Function - Personal PEF Spirometer
$16.95 Save $32.00 RRP: $48.95
LZB-6M 0-1.5 LPM Flowmeter Gas 8mm Hose Fitting Adjustable Oxygen Flowmeter Regulator Soft Tube for Hospitals Oxygen Bar
$21.95 Save $11.00 RRP: $32.95
10K Temperature Probe, Stainless Steel Waterproof Thermostat, 2 Meter Cable - 10 to 100 Degrees Celsius
$19.95 Save $6.00 RRP: $25.95
FS-11 Water Paddle Flow Switch Female Thread Connecting Flow Sensor 1L/min Flowmeter for Heat Pump Water Heater Air Conditioner
$8.95 Save $4.00 RRP: $12.95
Salinity Hydrometer Aquarium Salinometer Water Salinity Meter for Aquarium Fish Tank
$17.95 Save $71.05 RRP: $89.00
0.01 Precision Two-Wire 4-20MA Current Loop Signal Generator PLC Inst ent-Good
$14.95 Save $20.00 RRP: $34.95
Gas Flow Meter Tester Air Adjustable Panel Measure Control Flowmeter 10?1000ml/min
$18.95 Save $18.00 RRP: $36.95
1Set for -001 Controller 3D Sensor Analog Thumb Stick Caps
$17.95
Water Flow Switch -10 100V High Precision Level Sensor Adjustable Water Level Control Float Level Switch Flow Sensor
$19.95
4Pcs 50kg/110lb Half bridge Weighing Sensor 3 WiRed Load Cell Electric Resistance Strain Gauge
$20.95 Save $7.00 RRP: $27.95
Brake Booster Pressure Sensor 5Q0906207A Sensitive Compact Strong Power Black Fit For A4 B9 Avant 8W5 8WD
$12.95 Save $12.00 RRP: $24.95
Water Flow Meter IPX6 Waterproof with Brass Inlet Thread B
$18.95 Save $17.00 RRP: $35.95
Water Flow Switch FS-10 100V High Precision Level Sensor
$18.95 Save $19.00 RRP: $37.95
Water Flow Sensor Replacement Flowmeter Counter Tankless Water Heater Sensor
$19.95 Save $7.00 RRP: $26.95
Brass Water Flow Sensor Hall Effect Flow Meter for Commercial Water Systems
$15.95 Save $5.00 RRP: $20.95
B2QF 5832 INA228 20Bit Power Monitoring Module for Real Time Voltages and Current Analysis
$20.95 Save $4.00 RRP: $24.95
Portable Peak Flow Meter (pef Spirometer) For Asthma Lung Function - 2025 unbrand
$17.95 Save $10.00 RRP: $27.95
Quality Car Intake Pressure Sensor 06B906051 0261230031 for Sagitar
$14.95 Save $20.00 RRP: $34.95
Digital Load Cell Weight Sensor,4Sets 5KG Load Cell HX711 AD
$20.95 Save $2.00 RRP: $22.95
85L1 AC 0-300V Analogue Needle Panel Meter Voltmeter
$15.95 Save $2.00 RRP: $17.95
For TDS Sensor Meter V1.0 Board Module Water Meter
$10.95
Digital Load Cell Weight Sensor,4Sets 5KG Load Cell HX711 AD
$15.95
0.01 Precision Two-Wire 4-20MA Current Loop Signal Generator PLC Inst ent
$17.95 Save $17.00 RRP: $34.95
AC100-250V Generator Sealed Hour Meter Counter
$13.95
AC100-250V Electromechanical Hour Meter Counter
$13.95
Replace the Flow Meter for Floor Heating Water Separator Accessories
$13.95
5V/0.5W Micro Hydro Generator Hydroelectrics Water Turbine Generator
$20.95 Save $98.05 RRP: $119.00
PM2A Half-Circled Water Flow Meter Computer Cooling Half-Circled Flowmeter
$20.95 Save $98.05 RRP: $119.00
High Precision G3/4 Thread Water Flow Sensor Hall Effect Flowmeter 1-30L/min Black
$18.95 Save $11.00 RRP: $29.95
Digital DC Voltmeter, 0.56" LED Display Voltmeter, 3.5-30V Blue
$17.95