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    Rokonet COMET RK210PR — PIR Motion Detector Installation Manual

    August 31, 2026 2 min read

    Installation and specification manual for the COMET Series wired PIR/PET motion detector (RK210PR/RK210PT), covering mounting, terminal wiring, jumper settings, and lens replacement.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Installation and specification guide for the Rokonet/COMET Series PIR motion detector (RK210PR) and PET-immune detector (RK210PT), including the no-tamper variant (RK210PRNT). These wide-angle wired PIR detectors are designed for cost-effective residential intrusion detection.

    Model Overview

    • COMET PIR (RK210PR) — Wide-angle 12m x 12m (40' x 40') detection pattern with high catch performance and false-alarm immunity.
    • COMET PET (RK210PT) — 8m (26') 90° pet-immune detector, tolerant of a dog up to 42 lbs (20 kg), 2 cats, or multiple rodents.
    • RK210PRNT — Version of the PIR detector without the tamper switch.

    Installation Overview

    1. Open the cover.
    2. Choose a mounting location — avoid direct sunlight and heat sources. The detector needs to be positioned so an intruder will cross the infrared beam pattern.
    3. Remove the knockouts for mounting screws and cable entry.
    4. Insert the cable and attach the base to the mounting location. (The bottom of the unit can be drilled without removing the PCB.)
    5. Loosen the PC board holding screw and position the board according to the lens being used.
    6. Set the pulse-count jumper to match the desired sensitivity (see Jumper Settings below).
    7. Replace the front cover, apply power, and wait for the unit to stabilize (2+ minutes) before walk-testing.

    Mounting Heights and Coverage

    Lens Mounting Height Room Size / Range
    Wide angle 2.4m (7'10") Short: 3-6m (10'-20'); Long: 6-12m (20'-40')
    Long range lens (RL407, accessory) 2.4m (7'10") Range 18m (59') — use pulse count 1 only

    Higher-than-typical mounting heights are also supported (see figure 8c in the full manual).

    Terminal Connections

    • 12VDC: Power supply input
    • ALARM: N.C. dry contact relay
    • TAMPER: N.C. dry contact relay (RK210PR only)
    • CE: Cable entry
    • MS: Mounting screws

    Changing Lenses

    Lift off the clip holding the lens by pressing on its holding tabs, then slide the lens out of the cover. Reverse the procedure to insert a new lens.

    Specifications

    Operating Voltage 9 to 16 VDC
    Current 12mA at 12V
    Alarm Contacts 0.1A, 24V, N.C.
    Tamper Contacts (RK210PR only) 0.1A, 24V, N.C.
    Operating Temperature -5° to +50°C (+23° to 122°F)
    Storage Temperature -20° to +55°C (-4° to 131°F)
    Size 89 x 52 x 39 mm (3.5 x 2 x 1.5 in)
    Optical Filtering White-light protection, pigmented lens
    Temperature Compensation Automatic

    Model Part Numbers

    P/N Type Range Notes
    RK210PR0000A PIR 12m x 12m (40ft x 40ft) —
    RK210PRNT00A PIR 12m x 12m (40ft x 40ft) Without tamper
    RL407 Long Range Lens 18m x 2.3m (59'x7'7") Accessory

    Warranty

    Rokonet Electronics, Ltd. warrants its products to be free from defects in materials and workmanship under normal use for 6 years from the date of production. Seller's obligation is limited to repair or replacement of any product not meeting specifications, at Seller's option. Seller makes no other warranty, expressed or implied, including merchantability or fitness for a particular purpose. This product should be tested at least once a week.