ALLOYSEED Wireless Indoor Outdoor Thermometer Hygrometer
ALLOYSEED Wireless Digital Thermometer & Hygrometer
Stay informed about temperature and humidity levels both inside and outside your space with the ALLOYSEED Wireless Indoor/Outdoor Thermometer Hygrometer. Featuring a large, easy-to-read LCD screen and a wireless remote sensor with up to 100m (330ft) open-air transmission range, this compact monitor is ideal for homes, offices, greenhouses, nurseries, baby rooms, laboratories, schools, and more. Made in Mainland China.
Key Features
- Long-Range Wireless Sensor: Receives readings from up to 100 meters away in open areas — no need to go outside to check outdoor conditions.
- Large LCD Display: Bold, clearly legible numbers make it effortless to read temperature and humidity at a glance from across the room.
- Indoor & Outdoor Monitoring: Simultaneously tracks indoor temperature (0°C to 60°C) and outdoor temperature (-40°C to 60°C) with ±1°C accuracy and 0.1°C resolution.
- Humidity Gauge (Hygrometer): Monitors relative humidity levels to help you maintain a comfortable, healthy environment.
- Versatile Mounting Options: Compact, slim design supports both freestanding (tabletop shelf) and wall-mounted installation — perfect for any room or workspace.
- Low Power Consumption: Runs on 2×AAA batteries (main unit) and 2×AAA batteries (outdoor sensor) — not included. Long battery life keeps monitoring continuous.
- Broad Applications: Suitable for homes, offices, greenhouses, incubators, nutrition rooms, baby rooms, hospitals, laboratories, and more.
Specifications
| Material | ABS Plastic |
| Weight | ~127g / 4.5 oz |
| Main Unit Dimensions | ~12 × 7.5 × 1.5 cm / 4.7 × 3.0 × 0.6 in |
| Display Size | 4.0 – 6.9 Inches |
| Indoor Temp Range | 0°C to 60°C |
| Outdoor Temp Range | -40°C to 60°C |
| Temperature Accuracy | ±1°C |
| Temperature Resolution | 0.1°C |
| Wireless Range | Up to 100m (open area) |
| Power | 2×AAA (main) + 2×AAA (sensor) — batteries not included |
| Mounting Style | Freestanding or Wall-Mounted |
| Origin | Made in Mainland China |
What's in the Box
- 1× Main Display Unit (batteries not included)
- 1× Wireless Outdoor Sensor (batteries not included)
- 1× English User Manual
Please note: Due to differences in monitor settings and lighting, the actual color of the item may vary slightly from images. Please allow 1–2 cm deviation due to manual measurement.
For more information on maintaining healthy indoor air quality and humidity levels, visit the U.S. EPA Indoor Air Quality resource.
Frequently Asked Questions
Q: Does the ALLOYSEED wireless thermometer hygrometer come with batteries?
A: No, batteries are not included. The main display unit requires 2×AAA batteries and the wireless outdoor sensor also requires 2×AAA batteries. These are standard AAA batteries available at most retailers.
Q: What is the wireless transmission range of the outdoor sensor?
A: The wireless outdoor sensor can transmit readings up to 100 meters (approximately 330 feet) in an open, unobstructed area. Walls and other obstacles may reduce the effective range.
Q: Can this thermometer hygrometer be mounted on a wall?
A: Yes! The unit supports both freestanding (shelf/tabletop) and wall-mounted installation. It features a built-in hook/hole for easy wall hanging, making it flexible for any room or workspace setup.
Q: What environments is this device suitable for?
A: This wireless thermometer hygrometer is well-suited for a wide range of settings including homes, offices, greenhouses, incubators, baby rooms, nurseries, laboratories, schools, and hospitals — anywhere accurate temperature and humidity monitoring is important.