Abatement Technologies PPM4 Portable Differential Pressure Monitor
Product Details
The PPM4 is Abatement Technologies' portable differential pressure monitor for real-time measurement and logging of pressure differentials between adjacent areas on active job sites. It runs on an internal rechargeable lithium polymer battery for up to 3 days of cordless operation, or continuously on AC power. Built into a rugged carry case with a 7" color touchscreen, the PPM4 logs up to 12,000 events in non-volatile memory and can be monitored remotely via WiFi through the AT-CONNECT web platform and mobile app — with optional email and text alarm notifications.
WiFi, Web Portal & Mobile App
The PPM4 connects to WiFi (IEEE 802.11b/g/n, 2.4 GHz) and registers on the AT-CONNECT web portal. Once set up, alarm notifications can be pushed to multiple phone numbers or email addresses when the unit enters an alarm state — without someone having to be in the room. Download the AT-CONNECT app from the Apple App Store or Google Play Store and log in with the same portal credentials to view all registered devices and adjust settings remotely.
For job sites without WiFi, an optional LTE Radio Expansion Module (P/N: PMA-CM, sold separately) adds cellular connectivity. A USB port also allows direct connection of a flash drive for data offloading or a thermal printer — a 2 GB flash drive is included.
Data Logging
The PPM4 logs up to 12,000 events in non-volatile memory — no power or battery required to retain data. Logged events include alarm conditions with current pressure, system startup, alarm resets, configuration changes, low battery, calibration, archive erased, mode changes, pressure intervals, and next-day markers. Each event carries a date and time stamp. Data exports as CSV via USB flash drive, importable into any spreadsheet or text editor. A job number field (up to 8 digits, letters, or a combination) helps distinguish records from multiple job sites.
Alarm System
Custom alarm setpoints can be configured for any point within the measurement range. The color display provides a visual pre-alarm (yellow) and alarm (red) state. The internal speaker produces 85 dB at 10 cm for audible on-site alerts. When connected via WiFi or LTE, the AT-CONNECT platform delivers email and text notifications to configured contacts.
Battery Conditioning Note: On first use, power the unit on and run it in AC mode until the battery fully depletes, then recharge completely (approximately 5 hours). This conditions the battery for full rated life. The battery should be fully recharged every 6 months even if the unit is not in regular use.
Standard Accessories (Included)
| 1 ea. | 12 VDC / 1 A power supply / battery charger with 5' cable |
| 1 ea. | 10 ft × 1/8" ID clear air tubing |
| 2 ea. | Quick-connect adapters for 1/8" ID tubing |
| 2 ea. | 1/8" barb elbow connector attachments for closed box operation |
| 2 ea. | 10-micron inline filters with 1/8" barbs |
| 1 ea. | 2 GB USB flash drive |
Optional Accessories (Sold Separately)
| RPM-HANG | Wall hanger bracket — attaches to rear of PPM4 case for secure wall mounting |
| PMA-CM | LTE Radio Expansion Module — adds cellular connectivity for remote monitoring without WiFi |
Technical Specifications
| Model | PPM4 |
| Display | 7" 65K-color TFT touchscreen | 800 × 480 resolution |
| Pressure Range | ±0.10 inWC (±25 Pa) |
| Display Resolution | 0.0001 inWC | 0.025 Pa |
| Accuracy | ±3% full scale |
| Pressure Units | Inches water column (inWC) | Pascal (Pa) |
| Alarm Setpoints | Configurable — any range from very high to very low |
| Alarm Types | Audible (85 dB @ 10 cm) | visual display (yellow pre-alarm / red alarm) | email & text via WiFi/LTE |
| Battery | 7.4 V | 5.0 Ah lithium polymer | recharges in 7 hours |
| Battery Life | 1 year (off mode) | 3 days (battery mode) | 8 hours (AC power mode) |
| Max Power Consumption | 150 mA @ max display brightness | 300 µA in battery mode |
| Battery Charger Input | 100–240 VAC | 50–60 Hz |
| WiFi | IEEE 802.11b/g/n | 2.4 GHz | 20 MHz channel bandwidth |
| USB Port | USB V1.0 Type A | flash drive or thermal printer connection |
| Data Storage | 4 MB | up to 12,000 logged events | non-volatile memory |
| Data Export | CSV via USB flash drive (2 GB included) |
| Job Numbers | Up to 8 digits, letters, or combination — unlimited |
| Internal Clock | Lithium polymer battery maintains clock for 1 year without AC power |
| Pressure Ports | 0.194" (1.5 mm) quick-connect | compatible with 1/8" (3 mm) ID tubing |
| Inline Filter | 10-micron polypropylene HDPE | 1/8" barbed ends |
| Operating Temperature | 41°–131°F (5°–55°C) |
| Storage Temperature | -22°–176°F (-30°–80°C) |
| Operating Humidity | 0–85% RH (non-condensing) |
| Operating Altitude | 9,000 ft maximum |
| Dimensions (L × W × H) | 12" × 10" × 5" (30.48 × 25.4 × 12.7 cm) |
| Weight | 5 lbs (with case, charger, and hose) |
| Best Suited For | Healthcare construction | abatement & remediation | disaster restoration |
Download the Full Data Sheet
Abatement Advantage Pricing
The PPM4 is eligible for Abatement Advantage volume discount pricing. Contact us for pricing on multi-unit orders.
Abatement Commercial Shipping, Delivery, Sales Tax & Warranty
Free Shipping on Orders Over $3,500
Orders over $3,500 ship free to the continental United States. For orders under $3,500, available shipping options and rates are calculated at checkout. No hidden fees.
In Stock & Ships Fast
Most items are in stock and ship the same business day when ordered by 2:00 PM Eastern, Monday through Saturday. You will receive tracking information by email within 24 hours of shipment.
Freight Shipments
Large equipment ships via freight carrier. Freight rates are calculated at checkout — we work to keep those rates competitive. If you are not satisfied with the rate shown, contact us before ordering for a to-the-penny quote. Freight delivery times vary by location.
Hawaii, Alaska & US Territories
We ship to Hawaii, Alaska, and US territories. Shipping options are available at checkout, though rates to these destinations are higher than continental US, an are ineligible for free shipping. Contact us before ordering if you'd like a quote.
International Orders
International shipping options, including prepaid duties and taxes where available, are shown at checkout.
Abatement Advantage — Volume Pricing
Ordering 3 or more units? Contact us for Abatement Advantage bulk pricing before placing your order.
Sales Tax
We collect sales tax only on orders shipped to Pennsylvania, where HEPA Filter Sales, LLC has nexus. Buyers in all other states pay $0 in State Sales Tax on orders placed Directly through our online store. The applicable rate is calculated automatically at checkout based on your ship-to ZIP code.
Tax-exempt buyers — including resellers, government entities, and 501(c)(3) nonprofits — Please submit a valid resale or exemption certificate before placing an order if applicable. Email your certificate, tax ID, and issuing state to Help@HEPAFilterSales.com. Tax paid on completed orders is not refundable — exemption must be established in advance.
Manufacturer's Warranty — Abatement Technologies
Abatement Technologies products are sold with the manufacturer's warranty. All warranty claims are handled directly by Abatement Technologies — HEPA Filter Sales, LLC does not administer or extend manufacturer warranties. Contact us if you need assistance reaching the manufacturer's warranty or support team.
Use of non-OEM replacement filters or parts voids the manufacturer warranty and all performance claims on Abatement Technologies equipment.
Returns & Exchanges
We want every order to go smoothly, and if something is not right we want to make it right. At the same time, for the health and safety of everyone — our team, other customers, and the facilities these products are used in — we cannot resell opened or used filtration and air quality products. Our policy below is built around that reality. If you have any questions about a product before ordering, please reach out — we would rather help you get the right thing the first time than deal with a return after the fact.
Eligibility
Opened or used items are not eligible for return or refund under any circumstances. Products designated as Special Order, Clearance, Discontinued, or Final Sale along with Equipment are not eligible for return or exchange. All other returns require items to be unused, in new condition, and in original packaging with all accessories and documentation included.
30-Day Return Policy
Unopened, unused items may be returned within 30 days of delivery, subject to a restocking fee of at least 25% of the purchase price. Original shipping costs are not refunded. Return shipping is the buyer's responsibility. A Return Material Authorization (RMA) number is required before shipping any return — contact us first at Help@HEPAFilterSales.com to receive return instructions. Returns sent without an RMA may be refused.
Refunds are processed within 10 business days of receiving and inspecting the returned item. You will be notified by email when your refund has been issued.
Exchanges — Standard Restocking Charge Waived
Exchanges for unopened, unused items are not subject to a restocking fee. Contact us at Help@HEPAFilterSales.com before returning any item to arrange an exchange and receive expert advice on the correct solution.
Order Cancellations
Contact us immediately if you need to cancel an order. Not all orders can be cancelled once placed — freight and special-order items in particular may ship before a cancellation can be processed.
Damaged or Incorrect Items
If your order arrives damaged, note the damage with the delivery carrier at time of delivery, photograph the damage, and email us within 48 hours of delivery at Help@HEPAFilterSales.com. We will arrange return shipping and send a replacement at no additional cost to you.
If you receive an incorrect item (compared to what was ordered), email us your order number and a description of the issue. We will arrange return shipping and send the correct item at no cost to you.
Defective Items
Suspected product defects and performance issues are warranty matters handled directly by the manufacturer — they are not eligible for return or return shipping reimbursement from HEPA Filter Sales, LLC. Contact us and we will provide manufacturer contact information to assist with a warranty claim.
For More Information, please take a moment to review our governing policies:
Returns & Refunds Policy
Shipping Policy
Purchase Options & Subscription Policy