★★★★★
Prices start at : 131.24 USD / each
Taking approximately 30 minutes, the monitor is easily installed on your HVAC system's air handler return plenum, either upstream, downstream, or optionally differentially across the air filter, and is calibrated whenever the air filter is replaced.
- ✓ Easy to install and powered by 4 AA batteries or an optional power adaptor
- ✓ Wi-Fi enabled sends alerts when you should change your air filter
- Product Depth (in.): 2 in
- Product Height (in.): 4 in
- Product Weight (lb.): 1lb
- Returnable: 90-Day