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Terra Part # Price Ships in
2 Channels 0.2 - 2.0 μm 50% @ minimum channel size, 100% for particles >1.5 X - 2X channel particle size 0.1 CFM ApexR02 ISO 7 1510-48 77827 $3,727 5-10 Days 2
Ships Free Free shipping in contiguous USA
2 Channels 0.3 - 5.0 μm 50% @ minimum channel size, 100% for particles >1.5 X - 2X channel particle size 0.1 CFM ApexR03 ISO 7 1510-49 77828 $2,754 5-10 Days 3
Ships Free Free shipping in contiguous USA
2 Channels 0.3 - 5.0 μm 50% @ minimum channel size, 100% for particles >1.5 X - 2X channel particle size 1 CFM ApexR3 ISO 7 1510-46 77825 $3,416 5-10 Days 4
Ships Free Free shipping in contiguous USA
2 Channels 0.5 - 10 μm 50% @ minimum channel size, 100% for particles >1.5 X - 2X channel particle size 0.1 CFM ApexR05 ISO 7 1510-50 77829 $2,636 5-10 Days 5
Ships Free Free shipping in contiguous USA
2 Channels 0.5 - 10 μm 50% @ minimum channel size, 100% for particles >1.5 X - 2X channel particle size 1 CFM ApexR5 ISO 7 1510-47 77826 $2,800 5-10 Days 6
Ships Free Free shipping in contiguous USA
Detection Channels
Detection Range
Counting Efficiency
Flow Rate
Manufacturer SKU
ISO Class
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Custom-configured product. Contact Terra by phone, chat or email for a project-specific quote.
Custom-configured product. Contact Terra by phone, chat or email for a project-specific quote.
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Product Details
Product Details
  • Available ISO Ratings: ISO 7, ISO 8
  • 2-channel laser diode models with 3,000 storage in 0.2, 0.3 and 0.5 um minimum detection sizes
  • Remote access via webserver and concentration limits suitable for ISO 1-8 cleanrooms
  • Enclosure compatible with industry standard decontamination processes and ISO 21501-4 compliance
  • Real-time monitoring system used in GMP regulated industries and VHP room sterilization
  • Transfers particle count data with RS-485 (using MODBUS RTU or ASCII)
  • Applications: GMP regulated industries, VHP room sterilization, bio-decontamination, pharmaceutical production, manufacturing vaccines and other drugs
  • Flow Rate for Apex3 and Apex5: 1 CFM (28.3 LPM), 1/4” inlet and outlet fitting
  • Flow Rate for ApexR02, ApexR03 and ApexR05: 0.1 CFM (2.83 LPM), 1/8” inlet and outlet fitting
  • ApexR3: 0.3, 0.5  μm channel sizes
  • ApexR5: 0.5, 5.0 μm channel sizes
  • ApexR02: 0.2, 0.3 μm channel sizes
  • ApexR03: 0.3, 0.5 μm channel sizes
  • ApexR05:  0.5, 5.0 μm channel sizes
  • Self-Diagnostics: Laser power supply, laser current, laser power, photo detector power supply, background voltage, photo detector health
  • Provides risk mitigation and environmental compatibility
  • Versatile mounting option when used with an external vacuum source ideal in small environments
  • Feature of all models: Ethernet or Serial communication, 3,000 data storage, validation mode, alarm light, 304 stainless steel enclosure, OLED display, additional channel sizes available
  • Modbus Protocol: TCP or RTU or ASCII
  • External Vacuum Requirements;: Nominal 1.0 CFM 18" (45.72 cm) of Hg
  • Light Source: Laser Diode
  • Calibration: Designed for ISO 21501-4 Compliance
  • Zero Count Level: <1count/5 minutes per ISO 21501-4
  • Counting Efficiency: 50% @ minimum channel size, 100% for particles >1.5 X - 2X channel particle size
  • Concentration Limits 1.0 CFM: 1,000,000 particles/ft3@10% (34,300,000/m3) coincidence loss suitable for ISO classes 1-8 cleanrooms
  • Concentration Limits 0.1 CFM: 4,000,000 particles/ft3@10% (137,200,000/m3) coincidence loss suitable for ISO classes 1-8 cleanrooms
  • Software: LMS Express, LMS Express RT, LMS Pharma
  • Smart Bracket: Wall Mount Flush, Wall Mount Through Base, Wall Mount Through Wall

Particle Counters

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  • Lighthouse ApexRemote Series Connection to a Mobile Device by LWS Lighthouse ApexRemote Series Mobile Device Connection by LWS
Lighthouse ApexRemote Series Product Overview Video by LWS
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Features & Benefits

Features and Benefits

Products Compliant With Your ISO Rating

Provide Terra with your desired ISO rating. We will tailor the product to meet your rating and supply a certificate of compliance appended to your invoice, to be included in your compliance package. All certificates are archived in Terra's system for quick retrieval.

Protecting Personal Information

Terra is committed to ensuring that our customer’s personal information is secure. In order to prevent unauthorized access or disclosure, Terra has developed procedures to safeguard and secure information collected online and offline.

Global Customer Base

At Terra, we are committed to providing top-tier equipment to customers throughout the world. Over the past 5 years, clients in over 100 countries have purchased equipment from Terra.

Top-Tier Clients

Terra’s key customers include some of the largest research labs, production facilities and universities in the world

Catalog of CE-Marked Products

Terra offers over 1,700 CE-marked products configured for international voltage requirements
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