Zephyr™ Differential Pressure Meters & Modules

Zephyr XM ΔP (and ΔT) meter (with optional RH-ASX %RH, °C/°F direct connect probe)

Zephyr XM Digital Micromanometer
Highly Accurate, Low L.O.Ds, Yet Wide Measurement Range

Each Zephyr XM instrument incorporates dual auto-ranging DP sensors, auto-zeroing (for data-logging stability), as well as dual K-Type thermocouple sockets for measuring differential pressure, static pressure and differential temperature. With a pitot tube, the Zephyr provides direct air velocity readings. Volumetric flow is calculated by simply entering the size of the duct and the instrument performs the necessary calculation. Zephyr XMs can also be fitted with a telescoping air velocity probe (models AS-201 or AS-202) to measure temperature and exceptionally accurate hotwire airspeed and/or an RH-ASX probe for accurate relative humidity and °C/°F.

The Zephyr XM incorporates a number of enhancements over the Zephyr III and Zephyr II meters that it replaces, and which had been utilized by many 1000s of clients over the last 25+ years.

The Zephyr XM is a stand-alone instrument with the ability to capture instantaneous snap-shot logs, or to trend log over time. Audio and text notes, among others, may be added to the data files via a built-in microphone and the virtual keyboard. Recorded data may be downloaded to WolfSense PC reporting and analysis software, which is included, or directly download as a .csv file into spreadsheets.

Standard inputs
- Built-in, auto-zeroing, micromanometer (with broad range, yet excellent resolution)
- Dual K-Type thermocouple sockets
Optional probes
- 2 function probe; hotwire airspeed, °C/°F
- Pitot static tubes
- Display and log calculated volume flow from hotwire probes or pitots
- Direct connect or handle connected %RH and °C/°F probe (RH-ASX)
- Surface, immersion, penetration, air K-Type thermocouple temperature
Large color capacitive touch display
- Display and measure up to 8 parameters simultaneously
- Scroll through readings on display
- Automatically updated when probes plug in
- On screen instructions, even videos, for easy operation
Data port
- Allows logged data to be downloaded to included WolfSense PC data download and reporting software or to any spreadsheet program for analysis (USB data cable included)
- Manual “Snap” or automatic “Trend” data-logging available
- Advanced data-logging for unattended surveys
Intuitive menu system
- Minimum training required
- Easy-to-use
- Screen prompts guide user through operation
Rechargeable Li-Ion batteries
- 24+ hours operation on a full charge
- AC power adapter/charger included
Durable housing
- Impact resistant
- Comfortable to use
- Single-handed operation
- Optional meter pouch or belt-clip(s) available for hands-free operation

Optional, telescoping AS-201 telescoping hotwire air velocity probe. Highly accurate. Also available with articulating tip (AS-202A)

PCC-22HVAC Hardshell case included with Zephyr XM Kits

Zephyr XM Kit includes Data-logging Micromanometer, 2m (6ft) Dual Tubing, download Cable, WolfSense PC Data download Software and hard-shell Carry Case (with cutouts for optional extendable PIT-504 pitot kit, AS-201/201 and RH-ASX).