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Under $20 Measuring Tools & Sensors

Shop the best prices on 101,617 great value under $20 measuring tools & sensors. Shopping for measuring tools & sensors is easy with Fruugo, with SALE discounts, offers and savings on Uiamuion, Xpba, Viewleaf and more. Buy measuring tools & sensors online safely with Fruugo, with secure payment and fast shipping to Australia.

GaugesElectrical Testing ToolsRulersLevelsTape Measures
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1 - 32 of 3,200
100 Strips Urine Test Strip 10 Parameters
$11.95 Save $7.00 RRP: $18.95
Electric Heater Element Mini Boiler Hot Water Coffee Immersion Travel Use 600W
$17.95 Save $10.00 RRP: $27.95
EKG Calipers ECG Caliper Measuring Tool with Ruler Black Caliper Divider for Nurse or Doctor
$9.95 Save $11.00 RRP: $20.95
Heating Circulation Pump Rotation Tester and AC Detector Oil Burner Solenoid Valve Detects
$9.95 Save $4.00 RRP: $13.95
Water Level Indicator Stainless Steel Water Level Gauge Sticker Reflective Sticker Simple Installation Self-Adhesive Water Level Measuring Tool
$12.95 Save $38.00 RRP: $50.95
1 Pcs CR18-8DN Capacitive Proximity Switch Sensor Quality
$12.95 Save $91.05 RRP: $104.00
Electrolyzer Quick Water Quality Testing Electrolysis Iron Bars Tds Tester Eu Pl 21 Edition 1210
$19.95 Save $39.05 RRP: $59.00
100 Strips Urine Test Strip 10 Parameters
$11.95 Save $2.00 RRP: $13.95
60A 230V Waterproof Digital Current Meter, Mobile Kilowatt Power Monitor
$21.95 Save $4.00 RRP: $25.95
5pcs 5M DS18B20 Temperature Sensor Temperature Probe Stainless Steel Package Cable Waterproof Digital Thermostat Sensor unbrand
$19.95
60V-600V AC Three Phase Rotation Indicator Meter Phase Sequence Tester LED Buzzer with Portable Pouc 0621 Edition 0118
$18.95 Save $35.05 RRP: $54.00
Universal pH Test Paper Strips, Full Range pH 0-14, 16.4 ft/Roll (4 Rolls)
$14.95 Save $64.05 RRP: $79.00
Black Uv Light Ultraviolet Lamp Handheld Ultraviolet Cleaning Light Pocket Design With Back Adhesive Daily Necessities
$7.95 Save $81.05 RRP: $89.00
Tuya WiFi Temperatures Humidity Sensor with External Probe Wireless Temperatures App Monitor for Freezer Fish Tank
$16.95 Save $31.00 RRP: $47.95
Air Quality Monitor 5 in 1 Air Quality Detector C02 Detector White
$18.95 Save $5.00 RRP: $23.95
High-Accuracy Temperature and Humidity Sensor Telecommunications Room Monitoring Device Transmitter 0-10V Voltage BG2010
$10.95
3 in 1 CO2 Meter Air Quality Monitor Handheld 5000Ppm CO2 Monitor Measurement Carbon Dioxide ℃/℉ Det
$22.95 Save $21.00 RRP: $43.95
Air Quality Monitor 5 in 1 Air Quality Detector C02 Detector HCHO TVOC Tester LCD Temperature Humidity Tester Black
$18.95 Save $45.05 RRP: $64.00
29v/ac/dc Supply Electric Recliner Sofa Chair Adapter Transformer Tool-YuJia
$18.95 Save $10.00 RRP: $28.95
433MHz Remote Digital Wireless Thermometer Sensor Humidity Hygrometer Monitor Home Weather Station
$15.95 Save $9.00 RRP: $24.95
6Pack for DHT22 for AM2302 Temperature and Humidity Sensor Module with Cable for Arduino and Raspberry Pi
$16.95 Save $10.00 RRP: $26.95
9V Buzzer Tester Wire Tester PCB Cable Switch Products Switch Tester with Clip Cable Test Tool
$14.95 Save $7.00 RRP: $21.95
0-14PH Electrode Probe PH Probe High Sensitivity PH Sensor Probe 90cm Cable PH TesterMonitor for Aquarium Hydroponics
$3.95 Save $1.00 RRP: $4.95
Relay Compatible with Leer 35A Potential Relay for Refrigeration, HVAC Systems - Compatible with Fr
$15.95 Save $5.00 RRP: $20.95
TVOC Gas Sensor Expansion Board Module UART Communication Support TVOC/CH2O/CO2 for Raspberry Pi/Pico/for Arduino/ESP32
$20.95 Save $10.00 RRP: $30.95
High Precision Water Hardness Instrument TDS Tester PH Meter Aquarium Pool Water Testing Pen
$10.95
100 Pcs Paper Tapes Measure Disposable Paper Measuring Tapes Double-Scale Body Measurement Tapes Flexible Wound Measuring Rulers
$20.95 Save $13.00 RRP: $33.95
3 Pcs Crack Monitoring Record, Acrylic Corner Tell-Tale Monitor,Tell-Tale Crack Monitoring Device,Measuring Instrument
$14.95 Save $10.00 RRP: $24.95
Leverage Ruler Experiment Lever Principle Teaching Instrument Physics Teaching
$11.95 Save $6.00 RRP: $17.95
12Pack Mini Hygrometer Indoor Humidity Meter Hygrometer Digital Thermometers Humidity with (℉) for G
$19.95 Save $8.00 RRP: $27.95
Anti-sliding LP Vinyl Record Pickup Calibration Plate Distance Gauge Protractor Adjustment Tool Ruler for Turntable
$12.95
2 Rolls Self Adhesive Measuring Tape Metric Tape Measure Peel and Stick Ruler Tapes for Woodworking Drafting Table Saw
$14.95