Fieldpiece Wireless Handles EH4W

What is it used for?

The EH4W lets you turn any Fieldpiece accessory head into a fully wireless instrument. It displays real-time readings, receives remote data from a second tool, and connects easily to wireless meters and manifolds.

Top benefits

• ✅ Converts accessory heads into standalone wireless testers
• ✅ Reads one head directly and receives a second wireless reading via the ET2W transmitter
• ✅ Sends data to wireless Fieldpiece meters, manifolds, and system analysers
• ✅ Lets you work across large areas—take wet bulb readings and check condenser performance without moving back and forth

Key features

• ✅ Wireless range up to 23 metres (75 feet) line of sight
• ✅ Crisp 5000-count LCD for easy reading in all lighting
• ✅ Measures at 2.5 times per second for responsive updates
• ✅ Battery lasts around 200 hours with standard alkaline cells
• ✅ Compatible with ET2W and all Fieldpiece wireless gear

Operating environment

The EH4W is built for HVAC field conditions—rugged, responsive, and ready for hot or humid environments.

• ✅ Works between 0°C and 50°C (32°F to 122°F)
• ✅ Optimal below 70% relative humidity
• ✅ Uses 910–920MHz (US) or 868.1–868.5MHz (EU) wireless frequency

Warranty info

Fieldpiece backs the EH4W with a one-year manufacturer’s warranty for peace of mind on the job.

• ✅ 1-year limited warranty from purchase date