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Under $20 Hygrometers

Shop the best prices on 7,287 great value under $20 hygrometers. Shopping for hygrometers is easy with Fruugo, with SALE discounts, offers and savings on Ydcy, Elsavct, Lycxames and more. Buy hygrometers online safely with Fruugo, with secure payment and fast shipping to Singapore.

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1 - 32 of 3,200
Tuya WiFi Temperatures Humidity Sensor with External Probe Wireless Temperatures App Monitor for Freezer Fish Tank
$14.95 Save $29.00 RRP: $43.95
Relay Compatible with Leer 35A Potential Relay for Refrigeration, HVAC Systems - Compatible with Fr
$14.95 Save $5.00 RRP: $19.95
6Pack for DHT22 for AM2302 Temperature and Humidity Sensor Module with Cable for Arduino and Raspberry Pi
$14.95 Save $9.00 RRP: $23.95
High-Accuracy Temperature and Humidity Sensor Telecommunications Room Monitoring Device Transmitter 0-10V Voltage BG2010
$9.95
3x Tuya Wifi Temperature and Humidity Sensor Indoor Thermometer Hygrometer
$10.95 Save $10.00 RRP: $20.95
Hygrometer for Sauna Daily Temperature and Humidity Monitoring Tool
$10.95 Save $22.00 RRP: $32.95
Tuya Wifi Temperature Humidity Sensor Meter Indoor Hygrometer Thermometer Smart Life App Control
$2.95 Save $9.00 RRP: $11.95
Tuya WiFi Temperature Humidity Sensor Smart Life Backlight Hygrometer Thermometer Sensor Mobile Phone Remote Monitoring
$16.95 Save $11.00 RRP: $27.95
2 in 1 Thermometer Hygrometer for Indoor Office Home Room Outdoor Classic unbrand
$18.95
6Pack Mini Hygrometer Indoor Humidity Meter Hygrometer Digital Thermometers Humidity with () for G 25-26
$8.95 Save $9.00 RRP: $17.95
PT100 Sensor Temperature Control Thermocouple Probe 1M 3.3ft
$9.95
Relay Compatible with Leer 35A Potential Relay for Refrigeration, HVAC Systems - Compatible with Freezers and Coolers
$15.95 Save $9.00 RRP: $24.95
Mini Digital LCD Thermometer Hygrometer Temperature Meter Humidity Indoor New
$6.95 Save $1.00 RRP: $7.95
Sauna Furnace External Control Probe Wire Temperature Control Probe
$13.95 Save $9.00 RRP: $22.95
Soil Digital Temperature & Humidity Sensor Probe Waterproof Stainless Steel Case (SHT31)-Good Ydcy
$14.95 Save $8.00 RRP: $22.95
Mini Soil Tester Soil Moisture Meter Plant Water Monitor for Gardening Farming Indoor Outdoor
$18.95 Save $18.00 RRP: $36.95
Temperature Sensor J Type Thermistor Temp Probe Measuring Tool for PID Controller WRNJM6
$16.95 Save $18.00 RRP: $34.95
Wireless Temperature Humidity Sensor WiFi Bluetooth Smart Home Thermometer Hygrometer
$20.95 Save $22.00 RRP: $42.95
Wireless Smart Thermometer with Wi-Fi and Bluetooth Connectivity for Home Temperature and Humidity Monitoring
$20.95 Save $22.00 RRP: $42.95
Bathroom Hygrometer Thermometer for Indoor Use
$18.95 Save $22.00 RRP: $40.95
I2C Enableds Digital Temperature Humidity Sensorings Module Easy Integration For Microcontroller Platforms Multicolor
$15.95
Feature: 1. Modern Type: Modern outdoor and indoor table thermometer and hygrometer 2. With Probe: A
$21.95 Save $7.00 RRP: $28.95
Temperature Humidity Tester Hygrometer Integrated Analog Voltage Output Resistance Type
$18.95 Save $18.00 RRP: $36.95
LED Thermometer Thermo-Hygrometer Multifunction Electronic Temperature Humidity Meter Weather Statio
$9.95 Save $15.00 RRP: $24.95
Sunny Rainy Box Indoor Accurate Thermometer Home Barometer House Hygrometer Plastic Hanging Weather
$21.95 Save $19.00 RRP: $40.95
Carbon Brush Holder Carbon Brushes for HILTI SFC14-A SFC14A SFC 22A Replacement Power Tool Brush Ho-JC
$20.95 Save $13.00 RRP: $33.95
for ZigBee Temperature Humidity Sensor Real Time Monitoring USB Power Supply for TUYA Smart
$21.95 Save $7.00 RRP: $28.95
2026 new Ultra-Thin Digital Display Electronic Temperature and Humidity Meter Mini Thermometer Hygrometer wi
$19.95 Save $18.00 RRP: $37.95
High Accuracy SHT40 Sensors Module Digital Output 3.3V 5V Compatible For Intelligent Home Systems Multicolor
$19.95
High Accuracy SHT40 Sensors Module Digital Output 3.3V 5V Compatible For Intelligent Home Systems Multicolor
$19.95
Humidity Measurement Clock Shape Tool For Home Use Red Color With Battery-free Operation 2Pcs
$21.95 Save $14.00 RRP: $35.95
LCD Digital Thermometer Hygrometer Fridge Freezer tester Humidity Meter Black
$16.95